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Linux Command Cheat Sheet, Basic commands, , Share This Cheat Sheet, , File management, , File Utilities, , |, , Pipe (redirect) output, , find, , search for a file, , tr -d, , translate or delete character, , sudo [command], , run < command> in superuser, mode, , ls -a -C -h, , list content of directory, , uniq -c -u, , report or omit repeated lines, , rm -r -f, , remove files and directory, , split -l, , split file into pieces, , locate -i, , find file, using updatedb(8), database, , wc -w, , print newline, word, and byte, counts for each file, , cp -a -R -i, , copy files or directory, , head -n, , output the first part of files, , du -s, , disk usage, , cut -s, , remove section from file, , file -b -i, , identify the file type, , diff -q, , file compare, line by line, , mv -f -i, , move files or directory, , join -i, , grep, egrep, fgrep -i -v, , print lines matching pattern, , nohup [command], , run < command> immune to, hangup signal, , man [command], , display help pages of, < command>, , [command] &, , run < command> and send task, to background, , >> [fileA], , append to fileA, preserving, existing contents, , > [fileA], , output to fileA, overwriting, contents, , echo -n, , display a line of text, , xargs, , build command line from, previous output, , File compression, tar xvfz, , create or extract .tar or .tgz, files, , 1>2&, , Redirect stdout to stderr, , fg %N, , go to task N, , gzip, gunzip, zcat, , create, extract or view .gz files, , jobs, , list task, , uuencode, uudecode, , create or extract .Z files, , ctrl-z, , suspend current task, , zip, unzip -v, , create or extract .ZIP files, , rpm, , create or extract .rpm files, , bzip2, bunzip2, , create or extract .bz2 files, , File permission, chmod -c -R, , chmod file read, write and, executable permission, , touch -a -t, , modify (or create) file timestamp, , chown -c -R, , change file ownership, , chgrp -c -R, , change file group permission, , touch -a -t, , modify (or create) file, timestamp, , Network, netstat -r -v, , print network information,, routing and connections, , telnet, , user interface to the TELNET, protocol, , tcpdump, , dump network traffic, , ssh -i, , openSSH client, , ping -c, , print routing packet trace to, host network, , Compiled by Alvin Khoo, , rar, , create or extract .rar files, , File Editor, ex, , basic editor, , vi, , visual editor, , nano, , pico clone, , view, , view file only, , emacs, , extensible, customizable editor, , Memory & Processes, free -m, , display free and used system, memory, , killall, , stop all process by name, , sensors, , CPU temperature, , top, , display current processes, real, time monitoring, , kill -1 -9, , send signal to process, , service, [start|stop|restart], , manage or run sysV init script, , join lines of two files on a, common field, , ps aux, , display current processes,, snapshot, , more, less, , view file content, one page at a, time, , dmesg -k, , display system messages, , sort -n, , sort lines in text file, , comm -3, , compare two sorted files, line, by line, , cat -s, , concatenate files to the, standard output, , tail -f, , output last part of the file, , Scripting, , Disk Utilities, df -h, -i, , File system usage, , mkfs -t -V, , create file system, , resize2fs, , update a filesystem, after, lvextend*, , fsck -A -N, , file system check & repair, , pvcreate, , create physical volume, , awk, gawk, , pattern scanning, , mount -a -t, , mount a filesystem, , tsh, , tiny shell, , fdisk -l, , edit disk partition, , "", , anything within double quotes, is unchanged except \ and $, , lvcreate, , create a logical volume, , umount -f -v, , umount a filesystem, , '', , anything within single quote is, unchanged, , python, , "object-oriented programming, language", , bash, , GNU bourne-again SHell, , ksh, , korn shell, , php, , general-purpose scripting, language, , Misc Commands, pwd -P, , print current working directory, , bc, , high precision calculator, , expr, , evaluate expression, , sublime, , yet another text editor, , sed, , stream editor, , csh, tcsh, , C shell, , cal, , print calender, , pico, , simple editor, , perl, , Practical Extraction and Report, Language, , export, , assign or remove environment, variable, , source [file], , load any functions file into the, current shell, requires the file, to be executable, , ` [command], , backquote, execute command, , date -d, , print formatted date, , $[variable], , if set, access the variable, , Directory Utilities, mkdir, , create a directory, , rmdir, , remove a directory, , Read the Blog Post », bit.ly/Linux-Commands