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Archive for February 26th, 2017

bash – cheatsheet to choose between ; or && or || or & via Ask Ubuntu

Posted by jpluimers on 2017/02/26


A; B    Run A and then B, regardless of success of A
A && B  Run B if A succeeded
A || B  Run B if A failed
A &     Run A in background.

Source: bash – Which one is better: using ; or && to execute multiple commands in one line? – Ask Ubuntu [WayBack]

Thanks Jack [WayBack] for the initial answer ubfan1 [WayBack] for getting the formulation right, Hatshepsut [WayBack] for making it a readable cheat-sheet and leftaroundabout [WayBack] for making this brilliant addition using parenthesis which can be used for all permutations:

(A && B) &     In the background: run B if A succeeded


Posted in bash, Development, Scripting, Software Development | Leave a Comment »

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