UNIX Shell Commands

Part of the UNIX For Dummies Cheat Sheet

Whether your UNIX uses a Bourne-style shell or the C shell, you can do some simple typing to execute a range of commands. The following list shows a list of commands and what to type to execute them:

To Do This Type This To Do This Type This
Cancel a command Ctrl+U, Ctrl+X, or @ List filenames with sizes and dates ls -l
Change the working directory to /usr cd/ usr List hidden files too ls -al
Change the working directory back to your home directory cd List files and pause when screen is full ls | more
Copy a file cp oldfile newfile Look at a text file cat letter
Copy a file to another directory cp oldfile dirname Look at a long text file more letter
Copy a bunch of files to another directory cp budget* dirname Make a new link (name) for a file ln oldname newname
Copy all the files in this directory and in all its subdirectories cp -r * newdir Make new links (names) for files in a directory ln dirname/* newdir
Erase a file rm junkfile Combine two files cat file1 file2 > newfile
Rename a file mv oldname newname Compare two files diff file1 file2
Move a file to another directory mv oldfile dirname Look at the manual page for the ls command man ls
List filenames ls Change your password passwd
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