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linuxshellubuntuwaitgnu-parallel

Run command in parallel and fail the run if any command fails using wait

I can see there is parallel command which can do similar to what I want and answer is here: run commands in parallel with exit fail if any command fails

But I am using very minimal vm image and so I can't use parallel .

So Is that possible to run commands in parallel and return exist status fail if any of the command fails in the batch.

Ex. 

(npm install --global bower ng-cli) & (cd $1 npm install) & (cd $2 bower install); wait

In the above command if 2nd command fails, it should return exit status fail.

Please let me know if I should provide any more information.

(Worst case) if someone can help me converting above command to parallel command that will be also useful.

Solution

  • Using GNU Parallel:

    parallel --halt now,fail=1 ::: \
  "npm install --global bower ng-cli" \
  "cd $1 npm install" \
  "cd $2 bower install" && echo All is OK

    It will return with failure as soon as one of the jobs fail.