This section contains an alphabetical overview of common UNIX commands. More information about the usage can be found in the man or info pages.
Format files for printing on a PostScript printer.
Create a new user or update default new user information.
Create a shell alias for a command.
Execute commands periodically, does not assume continuously running machine.
Search the whatis database for strings.
APT package handling utility.
Queue, examine or delete jobs for later execution.
Adjust audio mixer.
Pattern scanning and processing language.
Concatenate files and print to standard output.
An interactive text-mode program for controlling and playing audio CD Roms under Linux.
An audio CD reading utility which includes extra data verification features.
Record a CD-R.
Change file attributes.
Change group ownership.
Update or query run level information for system services.
Change file access permissions.
Change file owner and group.
Copy files and directories.
Maintain crontab files.
Open a C shell.
Remove sections from each line of file(s).
Convert a TIFF facsimile to PostScript.
Format floppy disk.
Partition table manipulator for Linux.
Fetch mail from a POP, IMAP, ETRN or ODMR-capable server.
Bring a job in the foreground.
Determine file type.
Print a random, hopefully interesting adage.
Transfer files (unsafe unless anonymous account is used!)services.
Print real and effective UIDs and GIDs.
Configure network interface or show configuration.
Read Info documents.
Process control initialization.
Display I/O statistics.
Display/change network interface status.
IP firewall administration.
IP packet filter administration.
Modify an LDAP entry.
LDAP search tool.
more with features.
Linux boot loader.
Text mode WWW browser.
Make links between files.
Load keyboard translation tables.
Close current shell.
Send requests to the LP print service.
Line printer control program.
Print spool queue examination program.
Remove print requests.
List directory content.
Text mode WWW browser.
Send and receive mail.
Read man pages.
Copy MSDOS files to/from Unix.
Display an MSDOS directory.
Display memory usage.
Display memory usage statistics.
Control write access to your terminal.
Add an MSDOS file system to a low-level formatted floppy disk.
Creates a stand-alone boot floppy for the running system.
Create a hybrid ISO9660 filesystem.
Filter for displaying text one screen at the time.
Mount a file system or display information about mounted file systems.
Control magnetic tape drive operation.
Network diagnostic tool.
Internet domain name server.
Browser program for ftp services (insecure!).
Print network connections, routing tables, interface statistics, masquerade connections, and multi-cast memberships.
Print statistics about networked file systems.
Run a program with modified scheduling priority.
Network exploration tool and security scanner.
Simple interface for configuring run levels.
Ghostscript PDF to PostScript translator.
Practical Extraction and Report Language.
Page through text output.
Send echo request to a host.
Convert text files for printing.
Print all or part of environment.
Autonomous mail processor.
Report process status.
Display a tree of processes.
Print present working directory.
Secure remote copy.
Screen manager with VT100 emulation.
Display, set or change variable.
Set terminal attributes.
Secure (encrypted) ftp.
Open a standard shell.
Bring the system down.
Wait for a given period.
Security Enhanced version of the GNU Locate.
text mode Usenet client.
Network intrusion detection tool.
Sort lines of text files.
Authentication key generation.
Change and print terminal line settings.
Concatenate and print files in reverse.
Output the last part of files.
Talk to a user.
Open a Turbo C shell.
User interface to the TELNET protocol (insecure!).
Text formatting and typesetting.
Time a simple command or give resource usage.
News reading program.
Display top CPU processes.
Change file timestamps.
Print the route packets take to network host.
A file integrity checker for UNIX systems.
Tab Window Manager for the X Window System.
Set user file creation mask.
Unmount a file system.
Decompress compressed files.
Remove duplicate lines from a sorted file.
Kernel daemon to flush dirty buffers back to disk.
Display system uptime and average load.
Delete a user account and related files.
Show who is logged on and what they are doing.
Send a message to everybody's terminal.
Print the number of bytes, words and lines in files.
Shows the full path of (shell) commands.
Show who is logged on.
Print effective user ID.
Query a whois or nicname database.
Send a message to another user.
X authority file utility.
Graphical front end to cdrecord.
Analog/digital clock for X.
Monitor system console messages with X.
X Display Manager with support for XDMCP, host chooser.
X font server.
Server access control program for X
The extended Internet services daemon.
System load average display for X.
Server font list displayer for X.
Audio player for X.
Terminal emulator for X.