Browsing Catalan translation

560.

Wait for job completion and return exit status.

Waits for each process identified by an ID, which may be a process ID or a
job specification, and reports its termination status. If ID is not
given, waits for all currently active child processes, and the return
status is zero. If ID is a job specification, waits for all processes
in that job's pipeline.

If the -n option is supplied, waits for the next job to terminate and
returns its exit status.

If the -f option is supplied, and job control is enabled, waits for the
specified ID to terminate, instead of waiting for it to change status.

Exit Status:
Returns the status of the last ID; fails if ID is invalid or an invalid
option is given.