z/OS V1R9.0 UNIX System Services Command ... - Christian Grothoff

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Related Information
ed, ex, fg, jobs, mesg, sed, talk, write
For more information about regexp, see Appendix C.
wait — Wait for a child process to end
Format
Description
Localization
Usage notes
Exit Values
wait [pid|job-id ...]
tcsh shell: wait
wait waits for one or more jobs or child processes to complete in the background. If
you specify one or more job-id arguments, wait waits for all processes in each job
to end. If you specify pid, wait waits for the child process with that process ID (PID)
to end. If no child process has that process ID, wait returns immediately.
If you specify neither a pid nor a job-id, wait waits for the process IDs known to the
invoking shell to complete.
wait in the tcsh shell
The tcsh shell waits for all background jobs. If the shell is interactive, an interrupt
will disrupt the wait and cause the shell to print the names and job numbers of all
outstanding jobs. See “tcsh — Invoke a C shell” on page 626.
wait uses the following localization environment variables:
v LANG
v LC_ALL
v LC_CTYPE
v LC_MESSAGES
v NLSPATH
See Appendix F for more information.
wait is a built-in shell command.
If one or more arguments (pid or job-id) are specified, the exit status of wait is the
exit status of the last argument.
If you specified a job-id that has terminated or is unknown by the invoking shell, an
error message and a return code of 127 is returned. If you specified a pid that has
terminated or is unknown to the shell, a return code of 127 is returned. If a signal
ended the process abnormally, the exit status is a value greater than 128 unique to
that signal. Otherwise, possible exit status values are:
0 Successful completion or wait was invoked with no arguments, and all child
processes known to the invoking shell have completed.
1–126 An error occurred
127 A specified pid or job-id has terminated or is unknown by the invoking shell
788 z/OS V1R9.0 UNIX System Services Command Reference