Linux Shell Commands

Command	Description	Options
`pwd`	Displays the current working directory on the terminal.
`ls`	List the files and subdirectories in the current working directory.	-a: all files, including hidden ones -l: long and detailed list, including ownership, permissions, modification dates, and file sizes -R: contents of directory as well as subdirectories
`cd`	Change the current working directory.
`cp`	Copy files and directories from one location to another.	-R: copy the entire directory structure using recursion
`mv`	Moves files and directories from one location to another.
`rm`	Deletes files and directories in a location.
`cat`	Print a file's contents on the terminal.
`less`	Display the contents of a text file on the terminal, but only one screen's worth at a time.
`head`	Print the first few lines of a text file's contents on the terminal.
`tail`	Print the last few lines of a text file's contents on the terminal.
`vi/vim`	Open the Vim text editor for a file.
`su`	Switch user accounts for the current terminal session.	Use the `-` flag to indicate the root user. [deprecated]
`chown`	Change which user owns a specific file or directory.
`chgrp`	Change the group that owns a file or directory.
`chmod`	Edit the permissions for the owner, group, and others for a specific file or directory. More info can be found here.