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25 Cards in this Set
- Front
- Back
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When searching man pages "x" searches the description; "y" string searches the entire contents of the man pages; and "z" string finds all matching entries.
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x="-k"
y="-K" z="-a" |
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Which section of man pages is dedicated for system calls?
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usr/man/man2
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Which section of man pages is dedicated for files in the /dev directory
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usr/man/man4
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Which section of man pages is dedicated for commands you can run within a shell
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usr/man/man1
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Which section of man pages is dedicated for root operator utilites (administrative commands)
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usr/man/man8
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You want to view the system calls man pages. What command would you enter to view the introduction to the system calls section?
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man 2 intro
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To see where you are at in the directory structure, use this command to see the absolute path to the current directory
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pwd
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Use this command without any arguments to return to your home directory
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cd
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This is a wildcard for any single character
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?
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Using this switch after a ls command lists all files (including config files that start with a period)
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-a
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Using this switch with a ls command lists only the names of directories (not their contents)
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-d
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Using this switch with a ls command sorts files by time (newest first)
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-t
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This command can be used to create files, but is primarily used to send the contents of one or more files to your display or other output device.
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cat
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The use of this pipe redirects the output, but it appends to the existing file rather than overwrites it.
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>>
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End of File (EOD) character used to close a file?
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CTRL-D
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use this switch with the CAT command to Show nonprinting characters
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-v
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use this switch with the CAT command to Show all nonprinting characters and prints $ at the end of each line; equivalent to -vE
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-e
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Use this switch with a CAT command to show all nonprinting characters, prints $ at the end of each line, and shows tabs as ^I (equivalent to -vET)
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-A
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Use this utility to see the contents of a compressed file.
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zcat
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Displays a file, it starts with the last line and ends with the first one.
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tac
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You want to display the file June_report with the less pager, highlighting places where the word "data" appears. What command do you use?
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less +/data June_report
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This command is used to change the date and time of the last access. If the file does not exist, touch will create a new file of 0 length
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touch
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Using this switch with the touch command changes the access time only.
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-a
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Using this switch with the touch command uses a specified time rather than the current time.
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-t
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Use this switch with the touch command if you don't the system to create a new file.
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-c
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