Exit (command)

In computing, exit is a command used in many operating system command-line shells and scripting languages.

exit

The ReactOS exit command
Developer(s)	Various open-source and commercial developers
Operating system	Cross-platform
Type	Command

The command causes the shell or program to terminate. If performed within an interactive command shell, the user is logged out of their current session, and/or user's current console or terminal connection is disconnected. Typically an optional exit code can be specified, which is typically a simple integer value that is then returned to the parent process.

Implementations

Operating systems, shells and scripting languages providing this command include Microsoft MSX-DOS version 2,^[1] IBM OS/2,^[2] DR FlexOS,^[3] HP MPE/iX,^[4] KolibriOS,^[5] SymbOS,^[6] cmd.exe,^[7] sh, ksh, Perl, AWK, PHP, TCL, PowerShell and others.

On MS-DOS, the command is available in versions 2 and later.^[8] DR DOS 6.0^[9] and Datalight ROM-DOS^[10] also include an implementation of the exit command. It is also available in the open source MS-DOS emulator DOSBox.

The numerical computing environment MATLAB includes an exit function with similar functionality.^[11]

See also

• exit (system call)
• Exit status
• List of Unix commands
• List of DOS commands

References

1. MSX-DOS version 2
2. "JaTomes Help - OS/2 Commands". www.jatomes.com. Archived from the original on 2019-04-14.
3. "User Guide" (PDF). www.bitsavers.org. Archived from the original (PDF) on 2018-09-14. Retrieved 2018-09-16.
4. "MPE/iX Command Reference Manual" (PDF). Archived from the original (PDF) on 2018-10-21. Retrieved 2023-08-05.
5. "Shell - KolibriOS wiki". wiki.kolibrios.org.
6. "Data". www.symbos.de.
7. Archiveddocs. "Exit3". docs.microsoft.com.
8. Wolverton, Van (2003). Running MS-DOS Version 6.22 (20th Anniversary Edition), 6th Revised edition. Microsoft Press. ISBN 0-7356-1812-7.
9. DR DOS 6.0 User Guide Optimisation and Configuration Tips
10. "Datalight ROM-DOS User's Guide" (PDF). www.datalight.com.
11. "Terminate MATLAB program (Same as quit) - MATLAB exit".

Further reading

• Cooper, Jim (2001). Special Edition Using MS-DOS 6.22, Third Edition. Que Publishing. ISBN 978-0789725738.
• Peter Dyson (1995). Mastering OS/2 Warp. Sybex. ISBN 978-0782116632.
• Barrett, Daniel J. (2012). Macintosh Terminal Pocket Guide: Take Command of Your Mac. O'Reilly. ISBN 978-1449328986.
• Stanek, William R. (2008). Windows Command-Line Administrator's Pocket Consultant, 2nd Edition. Microsoft Press. ISBN 978-0735622623.

External links

• exit: cause the shell to exit – Commands & Utilities Reference, The Single UNIX® Specification, Issue 7 from The Open Group
• exit | Microsoft Docs