Unix |
Unix v7 |
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wait(1) |
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wait − await completion of process
wait
Wait until all processes started with & have completed, and report on abnormal terminations.
Because the wait(2) system call must be executed in the parent process, the Shell itself executes wait, without creating a new process.
sh(1)
Not all the processes of a 3- or more-stage pipeline are children of the Shell, and thus can’t be waited for.
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wait(1) | ![]() |