The Linux Commands Reference Cheat Sheet

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This easy cheat sheet can allow you to get familiar with the Linux command line terminal very quickly.

The Linux command line also referred to as the terminal, may be an intimidating location. However, it may also be your best tool.

Text controls frequently get the job done no matter that Linux-based working system you use, and the outcomes tend to be quicker than what a graphic desktop computer interface may provide.

Nevertheless, even for long-time customers, you’ll find too many orders to commit to memory. That is why we’ve prepared this useful cheat sheet of Linux commands. And should you would like to run a few of these, check out the way to multitask about the Linux terminal together with Display.

The Linux Command Line Cheat Sheet

Terminal 
clear Clear the terminal screen.
history Display recently used commands. You can also view these commands via the Up and Down keys.
! Repeat a recently used command. You can use !n to repeat the n-th command in history or !-n to repeat what happened n commands ago.
man Display the manual for a terminal program.
whatis Display a brief description of a terminal program. A simpler alternative to the man command.
alias Create a shortcut to a command or, when combined with the cd command, directory.
exitExit or close the terminal.
Navigation & File Management
cdChange directory. Used to navigate between folders.
pwdDisplay current directory.
cdChange current directory.
ls Display a list of files in the current directory.
cp Makes a copy of a file. Defaults to the current directory unless you specify a specific one.
mv Move a file from one directory to another.
rmRemove a file or set of files.
statDisplay when a file was last accessed, modified, or changed.
touchChange the date accessed or date modified time of a given file to right now.
rmdir Delete a file or files.
mkdir Create a directory. Defaults to the current directory, but you can also specify one.
rmdirDelete a directory. Defaults to the current directory, but you can also specify one. The target directory must be completely empty.
rename Change the name of a file or set of files.
findSearch a specific directory (or your entire PC) to find files that match designated criteria.
locateSearch for files or directories. Faster than the find command, but has fewer options.
grepSearch a specific file or set of files to see if a string of text exists and where.
mountAttach a separate filesystem (such as an external hard drive or USB stick) to your system's main filesystem.
umountDetach a separate filesystem from your system's main filesystem.
cat Display the contents of a text file. Also works with multiple files.
chmodModify the read, write, and execute permissions of a file.
chownChange the user or group that owns a file.
Users
su Switch user. Unless you desigate a specific user, this command will attempt to sign in as the root user (which you can think of as the system administrator).
whoami Displays the current user name.
id Display current user and group.
passwd Create or update a user's password.
System Administration
uname Displays core system information such as kernel version, hardware, and operating system.
sudoEnter before a command to perform the command as a system administrator. User must have administrator priveleges for this to work.
apt/dnf/pacman Programs for installing software and updates. Which one to use depends on your Linux-based operating system. Each requires administrator rights and additional instructions, such as sudo apt install program-name .
jobs Display the status of all current jobs. A job is a representation of a running process or group of processes.
bgSend a job to the background.
fg Send a job to the foreground.
kill End a process according to its process ID (which you can get using the ps command.
killall End all processes whose names match your query.
psDisplay a list of running processes. Defaults to processes started by the current user.
topDisplays a list of running processes, sorted by how much CPU each uses. Unlike ps, the command updates in real-time.
uptimeDisplays time since last boot.
whereis Finds the executable file for a program.
dfDisplays how much disk space is used and free on your system.
freeDisplays how much RAM is used and free on your system.
Network Management
ip Displays you IP address, network interfaces, bandwidth usage, and more.
ping Send or receive data from another computer on a network. Often used to test whether a network connection is established and the speed of that connection.
dig Look up a domain's DNS address
wget Download a file.
ssh Secure Shell. Connect and login to a remote network location.
Miscellaneous
echo Display a line of text. Often used in programs and scripts to relay information to users.
factorDisplays possible factors of a decimal number.
expr Solve math equations.
lookLook up a word in the dictionary.
Also See:  The Printable Markdown Cheat Sheet for Beginners and Experts

More Linux Terminal Commands

As comprehensive as this Linux commands cheat sheet could be, the listing is merely scratching the surface. There’s much more you can do at the terminal than we can ever aspire to match on a single page. Plus many controls change based on your Linux-based functioning system or need installing additional applications. The controls above are very likely to function out-of-the-box on many Linux machines.

All of the things in this cheat sheet are all helpful, but you will find other Linux commands which are just plain entertaining. If you are a newcomer, you ought to understand how to look at your Linux version also.