waitpid - utility to wait for arbitrary processes
waitpid [-v] [--timeout|-t seconds] pid...
waitpid is a simple command to wait for arbitrary non-child processes.
It exits after all processes whose PIDs have been passed as arguments have exited.
-t, --timeout seconds
-c, --count count
waitpid has the following exit status values:
Thomas Weißschuh <email@example.com>
For bug reports, use the issue tracker at https://github.com/util-linux/util-linux/issues.
The waitpid command is part of the util-linux package which can be downloaded from Linux Kernel Archive https://www.kernel.org/pub/linux/utils/util-linux/.