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34 lines
1.1 KiB
Text
34 lines
1.1 KiB
Text
\section wait wait - wait for jobs to complete
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\subsection wait-synopsis Synopsis
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\fish{synopsis}
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wait [-n | --any] [PID | PROCESS_NAME] ...
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\endfish
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\subsection wait-description Description
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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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\subsection wait-example Example
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\fish
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sleep 10 &
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wait $last_pid
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\endfish
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spawns `sleep` in the background, and then waits until it finishes.
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\fish
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for i in (seq 1 5); sleep 10 &; end
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wait
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\endfish
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spawns five jobs in the background, and then waits until all of them finishes.
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\fish
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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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\endfish
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spawns five jobs and `hoge` in the background, and then waits until all `sleep`s finishes, and doesn't wait for `hoge` finishing.
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