The following is a listing of some common Unix commands.
- awk [options][filename] : A pattern matching program
- cat [options] filename : Prints the contents of a file to the screen.
- cd [directory] : Change directory.
- chmod [options] filename : Modify file or directory permissions.
- clear: Clear the screen.
- cmp [options] filename1 filename2 : Compare the contents of two files.
- compress [options] filename : Compress a file.
- cp [options] filename1 filename2 :Copy a file.
- crypt [password] : Encrypt and decrypt the contents of a file.
- date [options] : Shows the time and date.
- diff [options] filename1 filename2 Shows differences in files.
- emacs [options] filename A Unix text editor.
- file [options] filename Classify files by type.
- finger [options] username Display information about local and remote users.
- ftp [options] host File Transfer Protocol.
- grep [options] string filename Search file for string.
- head [options] filename Display the first lines of a file.
- ispell [options] filename Check the spelling of a file.
- kill [options] pid Kill a process.
- less [options] A more powerful more.
- lp [options] filename Print a file.
- ls [options] [filename] Displays the contents of a directory.
- man [options] command The Unix help command.
- mh any mh command A Unix mail program.
- mkdir [options] directory Make directory
- more [options] filename Displays file contents.
- mv [options] filename target Move file to target.
- nice [-n] command [arguments] Execute command with a lower
- CPU scheduling priority.
- passwd [options] Changes your Unix password.
- ps [options] Prints information about active processes.
- pwd Prints the current directory.
- rlogin [options] hostname Establishes a remote login session.
- rm [options] filename Deletes a file.
- rmdir [options] directory Deletes a directory.
- rsh [options] hostname [command] Connects to the specified hostname and executes the
- specified command.
- script [filename] Writes everything printed on your screen to filename.
- sed [options] filename A stream editor.
- sort [options] filename Sorts contents of a file.
- tail [options] filename Displays last lines of file.
- tar key [options] filename(s) Tape archiver. Compresses and stores files.
- telnet [hostname [port]] Communicates with another host.
- touch [options] [date] filename Creates an empty file.
- uncompress filename.Z Uncompresses a file.
- uudecode filename Converts a uuencoded file.
- uuencode [filename] newfilename Converts a file to ASCII.
- vi [options] filename A Unix text editor.
- view [options] filename Read only version of vi.
- w [options] [user] Displays the current activity on the system.
- wc [options] filename(s) Counts lines, words, and characters in files.
- whereis [options] filename Locates source/binary and man pages for filename.
- which [filename] Locates executable files.
- who [options] [filename] Displays information about current system users.
- zcat [filename.Z] A compression program.
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