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Changes a shell‘s current working directory
Copies files
Searches files matching certain given criteria
Displays texts (such as manual pages) by page
Lists file information or directory contents
Creates new directories
Displays text data by page
Moves files to different directories or renames them
Displays the name of the current working directory
Removes (empty) directories
Add a new user
Find and Replace text within file(s)
Change the access permissions of files and directories
Clear terminal screen
Display or change the date & time
Stop a process from running
List information about file(s)
Create new folder(s)
Exit from a loop
Exit the shell
concatenate files and print on the standard output
rm removes each specified file.
display a line of text