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391 Cards in this Set
- Front
- Back
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a2p
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Create a Perl script from an AWK script.
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ac
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Print statistics about user connection time.
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access
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The system function which checks a user's permissions to access a file. |
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addgroup
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Add a group to the system.
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adduser
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Add a user to the system.
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agrep
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Version of the grep utility which also matches approximate patterns.
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alias
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Create an alternate name for a command.
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apropos
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Search the manual pages for a keyword or regular expression.
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apt-cache
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Search for information about software packages available through APT.
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apt-get
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Command line tool for managing APT software packages.
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aptitude
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Text-based front end for the APT package management system.
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ar
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Create, modify, and extract files from archives.
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arch
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Display the architecture of the system.
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arp
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Manipulate the system ARP cache.
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as
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An assembler.
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aspell
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An interactive spell checker.
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at
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Schedule a command to be run at a certain time.
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awk
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Interpreter for the AWK text processing programming language.
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basename
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Strip directory information and suffixes from filenames.
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bash
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The Bourne Again shell command interpreter.
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bc
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A calculator.
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bdiff
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Identify the differences between two very big files.
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bfs
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An editor which can load very large files.
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bg
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Resume a suspended program without bringing it to the foreground.
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biff
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Receive detailed mail notifications at the command line.
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break
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Break out of a while, for, foreach, or until loop.
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bs
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A Linux version of the popular game "Battleship."
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bye
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On some systems, an alias for the exit command.
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cal
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Display a conveniently-formatted calendar from the command line.
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calendar
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Display appointments and reminders.
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cancel
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Cancel a print job under the System V operating system.
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cat
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Output the contents of a file.
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cc
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Compiler of the C programming language.
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cd
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Change the working directory.
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cfdisk
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A more user-friendly version of the fdisk disk partitioning utility.
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chdir
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The system function for changing the working directory.
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checkeq
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Language processor which assists in describing equations.
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checknr
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Check nroff and troff files for errors.
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chfn
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Change a user's finger information.
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chgrp
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Change the group ownership of files and directories.
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chkey
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Change the secure RPC key pair on SunOS.
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chmod
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Change the permissions of files and directories.
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chown
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Change the ownership of files and directories.
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chroot
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Run a command or shell from another directory, and treat that directory as root.
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chsh
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Change login shell.
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cksum
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Calculate and display a CRC for files.
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clear
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Clears the screen.
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cmp
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Compare two files byte by byte.
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col
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Filter reverse linefeeds.
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comm
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Compare two sorted files line by line.
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compress
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Compress a file or files.
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continue
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Break out of a while, for, foreach, or until loop.
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cp
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Copy files and directories.
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cpio
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Copy files to or from archives.
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crontab
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View and edit a list of jobs for the system to run at regular intervals.
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crypt
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System function used to encrypt passwords.
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csh
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The C shell command interpreter.
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csplit
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Split files based on a defined context.
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ctags
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Create tag files for source code.
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cu
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Calls up another system, acting as a dial-in terminal.
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curl
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Transfer data to or from a server.
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cut
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Remove or "cut out" sections of each line of a file or files.
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date
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Output the current date and time.
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dc
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An arbitrary-precision arithmetic package.
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dd
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Copy and convert the encoding of files.
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delgroup
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Remove a group from the system.
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deluser
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Remove a user from the system.
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depmod
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Generate a list of kernel module dependences and associated map files.
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deroff
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Remove nroff/troff, tbl, and eqn constructs from files.
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df
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Report the amount of available disk space on file systems.
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dhclient
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Communicate with a DHCP server to obtain a dynamic IP address.
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diff
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Identify the differences between two files.
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dig
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DNS lookup utility.
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dircmp
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Compare the contents of two directories, listing unique files.
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dirname
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Strip the filename from a pathname, leaving only the directory component.
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dmesg
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Print or control the kernel ring buffer.
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dos2unix
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Convert text files between DOS and Unix formats.
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dpkg
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Query, install, remove, and maintain Debian software packages and their dependencies.
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dpost
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Translate files created by troff into PostScript under Solaris.
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du
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Report the amount of disk space used by a file or files.
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echo
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Output text.
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ed
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A simple text editor.
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edit
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A text editor.
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egrep
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Filter text which matches an extended regular expression.
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eject
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Eject removable media.
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elm
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A mail client.
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emacs
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A highly extensible text editor.
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enable
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Enable and disable LP printers.
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env
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Report the value of environment variables.
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eqn
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Language processor for describing equations.
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ex
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Line-editor mode of the vi text editor.
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exit
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Exit the command shell.
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expand
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Expand tab characters to a series of spaces.
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expr
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Evaluate arguments as an expression.
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fc
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List, edit, or re-execute commands from the command history.
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fdisk
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A disk partioning utility.
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fg
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Resumes a suspended job and brings it to the foreground.
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fgrep
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Filter text which matches a fixed-character string.
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file
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Determine a file's type.
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find
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Find files within a directory hierarchy.
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findsmb
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List information about machines networked with the Samba protocol.
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finger
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List information about a user.
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fmt
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A formatter for simplifying and optimizing text files.
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fold
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Wrap lines of text to a specified line width.
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for
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Execute a set of commands in a repeating loop.
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foreach
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Execute a set of commands once for each of a given set of input items.
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free
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Display the amount of free and used memory.
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fsck
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Check and repair a Linux file system.
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ftp
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Conduct an interactive FTP session over a secure network connection.
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fuser
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Identify processes using files or sockets.
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gawk
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GNU's version of the AWK programming language.
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getfacl
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Display file access control lists.
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gethostname
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System call to get the hostname of the current processor.
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gpasswd
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Administer /etc/group and /etc/gshadow.
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gprof
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Display call graph profile data.
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grep
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Filter text which matches a regular expression.
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groupadd
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Add a group to the system.
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groupdel
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Remove a group from the system.
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groupmod
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Modify a group definition.
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gunzip
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Expand compressed files.
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gview
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An alias for vim.
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gvim
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An alias for vim.
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gzip
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Create, modify, list the contents of, and extract files from GNU zip archives.
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halt
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Stop the computer.
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hash
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Access internal hash tables under Solaris.
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hashstat
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Evaluate the effectiveness of internal hash tables under Solaris.
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head
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Display the first lines of a file.
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help
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Display help for built-in shell commands.
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history
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Display the command history.
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host
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Convert a host name to an IP address and vice versa.
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hostid
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Print the numeric identifier for the current host.
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hostname
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Set or print the hostname of system.
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id
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Display real and effective user and group IDs.
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ifconfig
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View or modify the configuration of network interfaces.
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ifdown
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Disable a network interface.
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ifquery
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Parse information about a network interface.
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ifup
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Enable a network interface.
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info
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Read Info documents.
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init
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The parent of all processes on the system.
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insmod
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Insert a module into the Linux kernel.
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iostat
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Report CPU and I/O statistics for devices and partitions.
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ip
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Display and manipulate information about routing, devices, policy routing and tunnels.
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isalist
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Display the native instruction sets available on a Solaris system.
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iwconfig
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Configure a wireless network interface.
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jobs
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List the status of all running jobs.
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join
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Join the lines of two files which share a common field of data.
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keylogin
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Decrypt a user's secret key on SunOS.
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kill
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Send a signal to a process, affecting its behavior or killing it.
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killall
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Kill processes by name.
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ksh
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The Korn shell command interpreter.
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last
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Display a listing of the most recently logged-in users.
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ld
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Link editor for object files.
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ldd
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List dynamic dependencies of executable files or shared objects.
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less
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Scrolling text viewer.
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lex
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Generate programs for performing lexical tasks.
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link
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Create a hard link to a regular file.
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ln
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Create a link, or a symbolic link, to a file or directory.
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lo
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Exit the command shell.
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locate
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Search a local database to find files by name.
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login
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Begin a session on a system.
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logname
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Return a user's login name.
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logout
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Exit the command shell.
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losetup
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Set up and control loop devices.
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lp
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Print a file on the System V operating system.
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lpadmin
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Configure LP print services.
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lpc
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Control line printers.
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lpq
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List the status of available printers.
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lpr
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Submit print requests.
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lprm
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Remove requests from the print queue.
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lpstat
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List the status of the LP print services.
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ls
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List the contents of a directory or directories.
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lsmod
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Show the status of Linux kernel modules.
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lsof
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List open files.
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lzcat
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View compressed .lzma files.
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lzma
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Compress files to .lzma file.
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mach
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Display the processor of the current system.
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mail
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Read, compose, and manage mail.
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mailcompat
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Provide SunOS 4.x compatibility for the Solaris mailbox format.
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mailx
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Process mail messages.
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make
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Automatically build executable programs and libraries from source code.
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man
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Display the manual page of a given command.
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merge
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Performs a merge of the contents of three files.
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mesg
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Control if (non-root) users can send messages to your terminal.
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mii-tool
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View and manipulate the status of a media-independent interface.
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mkdir
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Create a directory.
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mkfs
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Build a Linux file system, usually a hard disk partition.
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mkswap
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Set up a Linux swap area.
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modinfo
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Show information about a Linux kernel module.
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modprobe
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Add and remove modules from the Linux kernel.
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more
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Display text one screen at a time.
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mount
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Mount a file system so that its data may be accessed.
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mt
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Control magnetic tapes.
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mv
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Move files and directories from one location to another, and optionally rename them.
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myisamchk
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Check, repair, optimize, or fetch information about a MySQL database.
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mysql
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An open-source relational database management system.
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mysqldump
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A tool for backing up or transferring MySQL databases.
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nc
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TCP/IP swiss army knife.
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neqn
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Language processor for describing equations.
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netstat
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Print information about network connections, routing tables, interface statistics, masquerade connections, and multicast memberships.
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newalias
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Install new elm aliases.
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newform
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Change the format of a text file under Solaris.
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newgrp
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Log into a new group.
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nice
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Invoke a command with an altered scheduling priority.
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niscat
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Display NIS+ tables and objects.
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nischmod
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Change access rights on a NIS+ object.
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nischown
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Change the owner of a NIS+ object on a system running Solaris.
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nischttl
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Change the time to live value of a NIS+ object.
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nisdefaults
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Display NIS+ default values.
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nisgrep
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Utilities for searching NIS+ tables.
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nismatch
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Utilities for searching NIS+ tables.
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nispasswd
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Change NIS+ password information.
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nistbladm
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Administer NIS+ tables.
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nl
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Number the lines in a file.
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nmap
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Network exploration tool and security port scanner.
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nohup
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Instruct a command to continue running even if the session is disconnected or the user logs out.
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nroff
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Format documents for terminal display or line-printer.
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nslookup
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Query a name server for information about a remote host.
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od
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Dump files in octal and other formats.
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on
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Execute a command on a remote system, but with the local environment.
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onintr
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Built-in shell function which responds to hardware interrupts.
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optisa
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Determine which instruction set is optimal to use on a Solaris system.
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pack
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Compress files using a Huffman algorithm.
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pagesize
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Display the size of a page of memory in bytes.
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parted
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A disk partition manipulation program.
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partprobe
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Inform the operating system about changes to the partition table.
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passwd
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Change a user's password.
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paste
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Merge corresponding lines of files.
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pax
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Read and write file archives, and copy directory hierarchies.
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pcat
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Print the uncompressed contents of a compressed file.
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perl
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Interpreter for the Perl programming language.
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pg
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Browse page by page through text files.
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pgrep
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Look up processes based on the name or other attributes.
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pico
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A simple text editor.
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pine
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A client for using mail and newsgroups.
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ping
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Send ICMP ECHO_REQUEST packets to network hosts.
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pkill
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Send a signal to any process whose attributes match a regular expression.
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poweroff
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Stop the computer.
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pr
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Format a text file for printing.
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printenv
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Print all or part of the environment.
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printf
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Write formatted output.
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priocntl
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Display or set scheduling parameters of a processes under Solaris.
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ps
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Report the status of a process or processes.
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pstree
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Display processes in a tree format.
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pvs
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Display the internal version information of dynamic objects within an ELF file.
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pwd
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Print the name of the working directory.
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quit
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Exit the command shell.
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rcp
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Copy files to or from a remote system.
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readlink
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Print the value of a symbolic link or canonical file name.
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reboot
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Stop the computer.
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red
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Run ed in "restricted" (less powerful, more secure) mode.
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rehash
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Recompute internal hash tables under Solaris.
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rename
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Rename multiple files according to a regular expression.
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renice
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Alter the priority of running processes.
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repeat
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Execute a set of commands in a repeating loop.
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replace
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A string-replacement utility.
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rgview
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An alias for vim.
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rgvim
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An alias for vim.
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rlogin
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Begin a session on a remote system.
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rm
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Delete files.
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rmdir
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Remove a directory.
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rmmod
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Remove a module from the Linux kernel.
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rn
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A newsgroup reader.
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route
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Display and manipulate the IP routing table.
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rpcinfo
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Report information about Remote Procedure Calls.
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rsh
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Execute a command on a remote shell.
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rsync
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A fast and versatile file copying tool capable of synchronizing files across remote systems.
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rview
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An alias for vim.
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rvim
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An alias for vim.
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s2p
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Convert a sed script into a Perl script.
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sag
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Under Solaris, Graphically displays system activity data generated by sar.
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sar
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Display CPU activity under Solaris.
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scp
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Copy files securely over a network connection.
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screen
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Screen manager with VT100/ANSI terminal emulation.
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script
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Record everything printed on your screen.
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sdiff
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Compare two files, side-by-side.
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sed
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A utility for filtering and transforming text.
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sendmail
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Send mail.
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service
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Run a System V init script.
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set
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Set the value of an environment variable.
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setenv
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Set the value of an environment variable.
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setfacl
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Modify the access control list of a file or files.
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sethostname
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System calls or set the hostname of the current processor.
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sfdisk
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A low-level disk partitioning program.
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sftp
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Conduct an interactive FTP session over a secure network connection.
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sh
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The Bourne shell command interpreter.
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shred
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Overwrite a file's contents, irrevocably destroying them.
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shutdown
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Schedule a time for the system to be powered down.
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sleep
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Wait a given number of seconds.
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slogin
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Login to a remote system securely.
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smbclient
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An ftp-like client for accessing SMB/CIFS resources on servers.
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sort
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Sort the lines in a text file.
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spell
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A spell checker.
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split
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Split a file into pieces.
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startx
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Start an X Window System session.
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stat
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Display the status of a file or filesystem.
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stop
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Stop a running job.
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strftime
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Format strings that represent the system date and time.
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strip
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Discard symbols from object files.
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stty
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Set options for your terminal display.
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su
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Become the superuser or another user.
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sudo
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Execute a command as the superuser.
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swapoff
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Disable a Linux swap area.
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swapon
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Enable a Linux swap area.
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sysinfo
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Get and set system information strings.
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sysklogd
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Linux system logging utilities.
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tabs
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Set tab stops on a terminal.
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tac
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Output the contents of files in reverse order.
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tail
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Print the last lines of a text file.
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talk
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Talk with other logged in users.
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tar
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Create, modify, list the contents of, and extract files from tar archives.
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tbl
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Preprocessor which formats tables for nroff or troff.
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tcopy
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Copy a magnetic tape.
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tcpdump
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Capture raw network traffic.
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tcsh
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A command-line shell similar to csh, with some additional features.
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tee
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Route a file's contents to multiple outputs.
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telinit
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Process control initialization.
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telnet
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Connect to a remote system using the telnet protocol.
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test
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Check file types and compare values.
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time
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Report how long it takes for a command to execute.
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timex
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Report process data and system activity for a specified command.
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todos
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Convert text files between DOS and Unix formats.
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top
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Display a sortable, continually-updated list of processes.
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touch
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Update the timestamp of a file or directory.
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tput
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Initialize a terminal or query the terminfo database.
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tr
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Translate one set of characters to another.
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traceroute
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Trace the route that packets take to a remote host.
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trap
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A function which "traps" signals and interrupts, and reacts to them.
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tree
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List the contents of a file hierarchy visually in a tree format.
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troff
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Typeset or format documents for terminal display or line-printer.
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tty
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Print the file name of the terminal connected to standard input.
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ul
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Translate underscores to underlining.
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umask
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Get or set the file mode creation mask.
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umount
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Unmount a file system, making its data inaccessible.
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unalias
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Remove an alias.
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uname
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Print information about the current system.
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uncompress
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Extract files from compressed archives.
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unhash
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Remove internal hash table under Solaris.
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uniq
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Identify, and optionally filter out, repeated lines in a file.
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unlink
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Remove a file.
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unlzma
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Decompress .lzma files.
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unpack
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Expand a compressed file.
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until
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Execute a set of commands until a certain condition is true.
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unxz
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Decompress .xz files.
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unzip
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List, test and extract compressed files in a zip archive.
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uptime
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Display information about how long the system has been running.
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useradd
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Add a user to the system.
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userdel
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Remove a user from the system.
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usermod
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Modify a user's account.
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vacation
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Reply to mail automatically.
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vgrind
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"Grind" nice program listings.
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vi
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Text editor based on the visual mode of ex.
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view
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Run vim in read-only mode.
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vim
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An advanced version of vi.
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vipw
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Safely edit the password file.
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visudo
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Safely edit the sudoers file.
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vmstat
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Report statistics about virtual memory usage.
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w
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Show who is logged on and what they are doing.
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wait
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Await process completion.
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wall
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Send a message to all logged-in users.
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wc
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Display a count of lines, words, and characters in a file.
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wget
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Download files via HTTP or FTP.
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whatis
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Display short manual page descriptions.
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whereis
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Locate the binary, source, and manual page files for a command.
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which
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Locate the binary executable of a command.
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while
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Execute a set of actions while a certain condition is true.
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who
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Report which users are logged in to the system.
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whoami
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Print your effective userid.
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whois
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An internet user name directory service.
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write
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Send a message to another user.
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X
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Executable of the X Window System.
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Xorg
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The executable of the X Window System server.
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xargs
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Build and execute complex commands, and execute them on multiple files.
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xfd
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Display all the characters in an X font.
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xhost
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Server access control program for X.
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xinit
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The initializer of the X Window System.
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xlsfonts
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Display X font lists.
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xrdb
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An X server resource database utility.
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xset
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A user preference utility for X.
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xterm
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A terminal emulator for X.
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xz
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Compress files to .xz files.
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xzcat
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View compressed .xz files.
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yacc
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"Yet another compiler-compiler."
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yes
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Repeatedly output a given string, or the letter "y".
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yppasswd
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Change a network password in an NIS database.
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yum
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An interactive rpm-based package manager.
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zcat
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Print the uncompressed contents of compressed files.
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zip
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A compression and archiving utility.
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zipcloak
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Encrypt files within an existing zip archive.
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zipinfo
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Display technical information about a zip file.
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zipnote
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View, add, or modify a zip file's comments.
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zipsplit
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Split a single zip archive into a set of smaller zip files.
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