Wait for an arbitrary process.
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.TH WAIT 03/21/2013 "wait4 @PACKAGE_VERSION]" "wait4 Manual"
.SH NAME
wait4 \- Wait for arbitrary processes
.SH SYNOPSIS
.SY wait4
.RB [ \-h | --help ]
.RB [ \-v | --version ]
.RB [ \-t | --timeout
.IR time ]
.IR pid ...
.YS
.SH DESCRIPTION
.PP
.B wait4
waits for the process(es) identified by the specified PID(s)
to terminate, and reports the termination status of the
process whose PID is specified last.
.SH OPTIONS
.TP
.BR -h ", " --help
Display the help message.
.TP
.BR -v ", " --version
Display the version message.
.TP
.BR -t ", " --timeout " " \fItime\fR
Aborts waiting after the specified
.I time
(in seconds).
.SH NOTES
.PP
The ability to report the termination status of the waited
process depends on
.BR netlink (7).
On systems without netlink, a fallback
.BR kill (2)-based
mechanism is used, which does not allow to retrieve the
termination status; the exit status is then always 0.
.SH REPORTING BUGS
.PP
Report bugs to
.MT @PACKAGE_BUGREPORT@
Damien Goutte-Gattat
.ME .
.SH COPYRIGHT
.ad l
.PP
Copyright \(co 2013 Damien Goutte-Gattat
.PP
This program is released under the GNU General Public License.
See the COPYING file in the source distribution or
.UR http://www.gnu.org/licenses/gpl.html
.UE .