The most essential Linux commands
Keep this Linux cheat sheet on your desk printed,
it will help you to learn them quick and become a Linux expert very soon.
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linux commands list

File Commands
1) The ls Linux command lists files and directories within the current working directory.
ls - directory listing ls -al - formatted listing with hidden files
2) The cd Linux command changes the current directory in Linux and can toggle between directories conveniently.
cd dir - change directory to dir cd - change to home
3) The pwd Linux command (print working directory) command displays the name of the current working directory.
pwd - show current directory
4) The mkdir (make directory) command is used to make a new directory.
mkdir dir - create directory dir