The document provides descriptions of common Linux commands and their usage: - ls lists the files in the current directory and options to modify the output - lp prints files to the printer - passwd changes user passwords - paste joins lines from files and displays the output - pg displays files one page at a time - pipe takes the output of one command as input to another - ps provides information about running processes - pwd prints the current working directory - rm removes files permanently - shift changes the order of command line arguments - mesg controls display of messages on the terminal - mkdir creates new directories - more displays files one screen at a time