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.\" $FreeBSD: head/bin/pwait/pwait.1 233648 2012-03-29 05:02:12Z eadler $
.\"
.Dd March 4, 2015
.Dt PWAIT 1
.Os
.Sh NAME
.Nm pwait
.Nd wait for processes to terminate
.Sh SYNOPSIS
.Nm
.Op Fl isv
.Op Fl t Ar timeout
.Ar pid
\&...
.Sh DESCRIPTION
The
.Nm
utility will wait until each of the given processes has terminated.
.Pp
The following option is available:
.Bl -tag -width indent
.It Fl i
Don't wait for all the processes, exit after the first process or group
of processes exit.
.It Fl s
Exit with the status code of the first non-zero exit status pid, or
if timed out exit with
.Dv 255 .
.It Fl t Ar timeout
Only wait for
.Ar timeout
seconds before exiting.
.It Fl v
Print the exit status when each process terminates.
.El
.Sh DIAGNOSTICS
The
.Nm
utility returns 0 on success, and >0 if an error occurs.
.Pp
Invalid pids elicit a warning message but are otherwise ignored.
.Sh SEE ALSO
.Xr kill 1 ,
.Xr pkill 1 ,
.Xr ps 1 ,
.Xr wait 1 ,
.Xr kqueue 2
.Sh NOTES
.Nm
is not a substitute for the
.Xr wait 1
builtin
as it will not clean up any zombies or state in the parent process.
.Sh HISTORY
A
.Nm
command first appeared in SunOS 5.8.