basename

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basename
Initial releaseJanuary 1979; 45 years ago (1979-01)
Written in
GPLv3+
Plan 9: MIT License

basename is a standard

pathname, it will delete any prefix up to the last slash ('/') character and return the result. basename is described in the Single UNIX Specification and is primarily used in shell scripts
.

History

basename was introduced in

Single Unix Specification.[1] It first appeared in 4.4BSD.[2]

The version of basename bundled in

coreutils was written by David MacKenzie.[3]

The command is available as a separate package for Microsoft Windows as part of the GnuWin32 project[4] and the UnxUtils collection of native Win32 ports of common GNU Unix-like utilities.[5]

Usage

The Single UNIX Specification specification for basename is. 

basename string [suffix]
string
A
pathname
suffix
If specified, basename will also delete the suffix.

Examples

basename will retrieve the last name from a pathname ignoring any trailing slashes 

$ basename /home/jsmith/base.wiki 
base.wiki

$ basename /home/jsmith/
jsmith

$ basename /
/

basename can also be used to remove the end of the base name, but not the complete base name 

$ basename /home/jsmith/base.wiki .wiki
base

$ basename /home/jsmith/base.wiki ki
base.wi

$ basename /home/jsmith/base.wiki base.wiki
base.wiki

See also

References

  1. The Single UNIX Specification, Version 4 from The Open Group
  2. ^ basename(1) – FreeBSD General Commands Manual
  3. ^ basename(1) – Linux User Manual – User Commands
  4. ^ CoreUtils for Windows
  5. ^ Native Win32 ports of some GNU utilities

External links

The Wikibook Guide to Unix has a page on the topic of: Commands
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