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46 lines
1.1 KiB
ReStructuredText
46 lines
1.1 KiB
ReStructuredText
.. _cmd-wait:
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wait - wait for jobs to complete
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================================
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Synopsis
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--------
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``wait`` [**-n** | **--any**] [*PID* | *PROCESS_NAME*] ...
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Description
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-----------
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``wait`` waits for child jobs to complete.
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- If a pid is specified, the command waits for the job that the process with the pid belongs to.
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- If a process name is specified, the command waits for the jobs that the matched processes belong to.
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- If neither a pid nor a process name is specified, the command waits for all background jobs.
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- If the **-n** / **--any** flag is provided, the command returns as soon as the first job completes. If it is not provided, it returns after all jobs complete.
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Example
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-------
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::
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sleep 10 &
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wait $last_pid
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spawns ``sleep`` in the background, and then waits until it finishes.
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::
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for i in (seq 1 5); sleep 10 &; end
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wait
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spawns five jobs in the background, and then waits until all of them finishes.
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::
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for i in (seq 1 5); sleep 10 &; end
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hoge &
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wait sleep
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spawns five jobs and ``hoge`` in the background, and then waits until all ``sleep``\s finish, and doesn't wait for ``hoge`` finishing.
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