*|-! Command Name !! Command Description | cat [filename] || Display file’s contents to the standard output device (usually your monitor).|-| cd /directorypath || Change to directory.|-*| chmod [options] mode filename || Change a file’s permissions.|-*| chown [options] filename || Change who owns a file.|-*| clear || Clear a command line screen/window for a fresh start.|-*| cp [options] source destination || Copy files and directories.|-*| date [options] || Display or set the system date and time.|-*| df [options] || Display used and available disk space.|-*| du [options] || Show how much space each file takes up.|-*| file [options] filename || Determine what type of data is within a file.|-*| find [pathname] [expression] || Search for files matching a provided pattern.|-*| grep [options] pattern [filesname] || Search files or output for a particular pattern.|-*| kill [options] pid || Stop a process. If the process refuses to stop, use kill -9 pid.|-*| less [options] [filename] || View the contents of a file one page at a time.|-*| ln [options] source [destination] || Create a shortcut.|-*| locate filename || Search a copy of your filesystem for the specified filename.|-*| lpr [options] || Send a print job.|-*| ls [options] || List directory contents.|-*| /man [command] || Display the help information for the specified command.|-*| mkdir [options] directory || Create a new directory.|-*| mv [options] source destination || Rename or move file(s) or directories.|-*| passwd [name [password]] || Change the password or allow (for the system administrator) to

|-*| ps [options] || Display a snapshot of the currently running processes.|-*| pwd || Display the pathname for the current directory.|-*| rm [options] directory || Remove (delete) file(s) and/or directories.|-*| rmdir [options] directory || Delete empty directories.|-*| ssh [options] user@machine || Remotely log in to another Linux machine, over the network. |-*| Exit || Leave an ssh session by typing exit|-*| su [options] [user [arguments]] || Switch to another user account.|-*| tail [options] [filename] || Display the last n lines of a file (the default is 10).|-*| tar [options] filename || Store and extract files from a tarfile (.tar) or tarball

*top Displays the resources being used on your system. Press q to exit. *touch filename Create an empty file with the specified name. *who [options] Display who is logged on.|}