Original author(s) | Ken Thompson, Dennis Ritchie |
---|---|
Developer(s) | AT&T Bell Laboratories |
Initial release | November 3, 1971 |
Operating system | Unix and Unix-like, IBM i |
Platform | Cross-platform |
Type | Command |
The command chown /ˈtʃoʊn/, an abbreviation of change owner, is used on Unix and Unix-like operating systems to change the owner of file system files and directories. Unprivileged (regular) users who wish to change the group membership of a file that they own may use chgrp.
The ownership of any file in the system may only be altered by a super-user. A user cannot give away ownership of a file, even when the user owns it. Similarly, only a member of a group can change a file's group ID to that group.[1]
The command is available as a separate package for Microsoft Windows as part of the UnxUtils collection of native Win32 ports of common GNU Unix-like utilities.[2] The chown command has also been ported to the IBM i operating system.[3]
See also[edit]
References[edit]
- ^ BSD Man page for chown, March 31, 1994
- ^ "Native Win32 ports of some GNU utilities". unxutils.sourceforge.net.
- ^ IBM. "IBM System i Version 7.2 Programming Qshell" (PDF). IBM. Archived (PDF) from the original on 2020-09-18. Retrieved 2020-09-05.
External links[edit]
- The Single UNIX Specification, Version 4 from The Open Group – Shell and Utilities Reference,
- chown manual page
- The chown Command by The Linux Information Project (LINFO)
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction