hash command in Linux with examples

hash command in Linux system is the built-in command of bash which is used to maintain a hash table of recently executed programs. It remembers and shows the program locations. It will give the full pathname of each command name.


hash [-lr] [-p pathname] [-dt] [name ...]


  • -d: This is used to forget the remembered location of each NAME.
  • -l: It will display in a format that may be reused as input.
  • -p: pathname use PATHNAME as the full pathname of NAME.
  • -r: Forget all remembered locations.
  • -t: To display the remembered location of each NAME, preceding each location with the corresponding NAME if multiple NAMEs are given.

Example 1: hash command without any option


Example 2: hash command with -r option

Example 3: hash command with -l command

hash -l

My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.

Article Tags :

Be the First to upvote.

Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.