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42 Cards in this Set
- Front
- Back
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What is the command to copy an input file and convert the file's content to another format?
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Syntax: dd
-if= -of= -bs= -ibs= -obs= -conv= |
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What is the command line to display information about how space is allocated in a file system, such as used and free space.
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syntax: df
-h -l -m -t |
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What is the command line to summarizes disk usage, with the default of presenting information by directory?
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syntax: du
-a -b -c -h -S |
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What is the command line to remove garbage files?
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find. " (" -name a.out -o name core ")" -exec rm {} \;
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What is the command line to monitor CPU-intensive tasks?
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Syntax: top
n- |
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What is the command line to display how long the system has been up since the last boot?
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Syntax: uptime
no option |
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What is the command line to display statistics about free and used memory?
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Syntax: free
-b -m -g -t |
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What is the command line to forward the output of the top and free command to a computer suport person?
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Syntax :
top n 3 > topdata free n 3> freedata |
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How to forward top and free output to a printer or email to a support person?
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Syntax: mail supportperson name or email (might be wrong)
lpr- topdata |
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What is the command line to provides a listing of the currently running processes?
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Syntax: ps
-A --user - show user by process |
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What is the command line to stop a process?
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Syntax: kill [-PID]
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What is the command line to check the spelling of words in one or more plain-text files and suggest changes?
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Syntax: ispell [-option] filenames
-b creats a backup (.bak) of the original file. -C ignore concatenate words -S orders the suggested substitutions from most likely to least likely |
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What is the command line to compares two files and indicates if they are different?
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Syntax: cmp [-option] file1 file2
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What is the command line to format text?
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Syntax : groff [-Tdev] no space in between Tdev
TdevH TdevT |
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What is the command line to back up files and directories?
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Syntax: dump [-option] devicename and partition or file names
i.e = dump -0u -f /de/st0 /dev/hd2 |
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What is the command line to restore entire file system, specific files and directories?
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Syntax: restore [-option] device partition or filenames
i.e= restore -r -f /dev/st0 Retores the tape restore -i -f /dev/tape |
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What is the command line to send and receive mail through your computer or server?
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Syntax: mail
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What is the command line to configures a network connection and is used to view information about the connection, such as the IP address?
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Syntax: ifconfig [network interface]
eth0 -a show all network interfaces including those that are not currently working. |
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What is the command line to poll a computer on the same or a different network to determine if your computer is working, the network is working, or the remote comuter is connected and working?
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Syntax: ping [-option] hostname
-a sound a beep -c returns the number of polls -q display summarize results |
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What is the command line to track the route that a network communication takes from point A on a network to point B?
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Syntax: traceroute [-option] host
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What is the command line to monitor network traffic into and out of the host computer?
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Syntax: netstat [-option] host
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What is the command line to runs a script that starts a service in UNIX/Linux, such as a serice to enable remote procedure calls or a service to enable printing?
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Syntax: servicename
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Unix and linux utilities are classified into how many functional areas?
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8
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What utilities check and reports free disk space?
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df
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What utilities command to check for disk usage?
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du
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what command to use when you want to remove waste space or barbage files?
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find and rm
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What are the two command to provide detailed views of "internals" of the system to determine CPU and memory use?
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top and free
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What command is used to show how long a system has been up since booting?
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uptime
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If you want to run a program in the background by appending what operator at the end of the command line?
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&
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What command is used to display currently running processes?
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ps
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What command is used to terminate a currently running processes?
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kill
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what utilities command is used to check spelling of a file?
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ispell
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How to archive and back up file system, directories, and files? How to restore a file system?
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dump command
restore command |
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What does the Network File System (NFS ) does?
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It enables useres to share directories and files over a network
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What utilties is used that enables UNIX/Linux computers to access folders and files shared on networked WINDOW computers?
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Samba
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A type of barbage file created when an executing program attempt to do something illegal, such as accessing another user's memory?
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core file
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A temporary file, such as core files, that loses its usefulness after serveral days.
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garbage file
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A network protocol or communication language that handles addressing and routing of information over a network so that it reaches the correct destinations?
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Internet Protocols
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A communications standard that supports sending and receving binary files in mail messages?
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Multipurpose Internet Mail Extentions (MIME)
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Enables files transfer and other shared services that involve computer running UNIX/Linux
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Network Files System
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An identification number that the operating system assigns to a process for managing and tracking that process?
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Process ID (PID)
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Enable services and software on one computer to use services and software on a different computer
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Remote procedure call (RPCs)
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