- Linux command cheat sheet full#
- Linux command cheat sheet download#
To copy an entire directory, pass the -R flag before typing the source directory, followed by the destination directory:Ĭp -R /home/username/Documents /home/username/Documents_backup 7. To copy the content of a file to a new file in the same directory, enter cp followed by the source file and the destination file: To copy files to a directory, enter the file names followed by the destination directory:Ĭp filename1.txt filename2.txt filename3.txt /home/username/Documents To copy one file from the current directory to another, enter cp followed by the file name and the destination directory. Use the cp command to copy files or directories and their content.
tac filename.txt displays content in reverse order. cat filename1.txt filename2.txt > filename3.txt merges filename1.txt and filename2.txt and stores the output in filename3.txt. 
Here are other ways to use the cat command: To run the cat command, type cat followed by the file name and its extension. It lists, combines, and writes file content to the standard output. ls -lh shows the file sizes in easily readable formats, such as MB, GB, and TB.Ĭoncatenate, or cat, is one of the most frequently used Linux commands.ls -a shows hidden files in addition to the visible ones.ls -R lists all the files in the subdirectories.Here are some options you can use with the ls command: For example, to view files in the Documents folder, enter: To see other directories’ content, type ls followed by the desired path. Running it without a flag or parameter will show the current working directory’s content. The ls command lists files and directories within a system. cd ~ goes to another user’s home directory.Here are some shortcuts to help you navigate: If you want to switch to a completely new directory, for example, /home/username/Movies, you have to enter cd followed by the directory’s absolute path: Let’s say you’re in /home/username/Documents and want to go to Photos, a subdirectory of Documents. Keep in mind that only users with sudo privileges can execute it. Running this command without an option will take you to the home folder.
Linux command cheat sheet full#
Depending on your current working directory, it requires either the full path or the directory name. To navigate through the Linux files and directories, use the cd command.
-P or –physical prints the actual path of the current directory. -L or –logical prints environment variable content, including symbolic links. The pwd command uses the following syntax: Simply entering pwd will return the full current path – a path of all the directories that starts with a forward slash ( /). Use the pwd command to find the path of your current working directory. -h or –host=host runs commands on the host. -g or –group=group runs commands as a specified group name or ID. 
-k or –reset-timestamp invalidates the timestamp file. If you try to run sudo in the command line without authenticating yourself, the system will log the activity as a security event. By default, every root user can run sudo commands for 15 minutes/session. Then, the Linux system will log a timestamp as a tracker. When using sudo, the system will prompt users to authenticate themselves with a password. Short for superuser do, sudo is one of the most popular basic Linux commands that lets you perform tasks that require administrative or root permissions. Here is the list of basic Linux commands: 1. If you are still unsure, check out our CLI tutorial.Īlthough the steps may differ depending on your Linux distribution, the Terminal application is usually found in the Utilities section. The 40 Most Commonly Used Linux Commandsīefore proceeding to the list of basic commands, you need to open Terminal first. Keep in mind that all Linux commands are case-sensitive. Parameter or argument specifies any necessary information for the command. To invoke it, use hyphens ( –) or double hyphens ( -). Option or flag modifies a command’s operation. CommandName is the rule that you want to perform. These are the three most common parts of a command: In some cases, it can still run without them. Here’s what a Linux command’s general syntax looks like:Ī command may contain an option or a parameter. You can run commands to perform various tasks, from package installation to user management and file manipulation. Linux commands are executed on Terminal by pressing Enter at the end of the line. 
It’s similar to the Command Prompt application in Windows.
Linux command cheat sheet download#
Download a Free Linux Commands Cheat SheetĪ Linux command is a program or utility that runs on the CLI – a console that interacts with the system via texts and processes. The 40 Most Commonly Used Linux Commands.
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