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LinuxCommands @Linux_Commands

Useful Linux commands.

Joined April 2012
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"sudo" - allows a permitted user to execute a command as the superuser or another user, as specified in the sudoers file.
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Returns > Just some text
$echo "Just some text"
"echo" - Display a line of text.
"$df -h"For human readable space usage.
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"df" - Report file system disk space usage
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Result: Linux MachineName 3.0.0-17-generic #30-Ubuntu SMP Thu Mar 8 20:45:39 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux
Example $ uname -a
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"uname" Prints system information.
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$ "free -b" Display amount of free and used memory in bytes.
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$ "free -k" Display amount of free and used memory in kilobytes.
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$ "free -m" Display amount of free and used memory in megabytes.
$ "free -g" Display amount of free and used memory in gigabytes.
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"free" - Display amount of free and used memory in the system.
"locate" - find files by name. Usage $ locate "fileName"
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"whoami" prints current session userid
"touch" - creates new file if it doesn't exist or changes the timestamp of already existing file. $touch fileName
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"cat" - combines and prints files to standard output. $ cat file //Prints the content of a file $ cat file1 file2 > file3 //Combines files
Probably one of most useful commands. $find -name '*.[ch]' | xargs grep -E 'search_term' Search 'search_term' in this directory recursively.
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