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