until command in Linux with Examples

until command in Linux used to execute a set of commands as long as the final command in the ‘until’ Commands has an exit status which is not zero. It is mostly used where the user needs to execute a set of commands until a condition is true.


until COMMANDS; do COMMANDS; done

Here, if the COMMANDS get evaluated to false then the statements will be executed. If the COMMANDS get evaluated to true then the no statements will be executed and control will go after the done statement.



  • help until : It displays help information.

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.