waitpid - a simple command-line utility to wait for a foreign process
to exit.
Description
-----------
The `waitpid` utility is a simple command-line tool that waits for a
process with a given PID to exit.
Since it uses the pidfd_open system call, the tool is only compatible
with operating systems/kernels that implement the pidfd family of
syscalls, like GNU/Linux.
Installation
------------
To install `waitpid`, run the following commands:
$ make
$ install -m755 build/waitpid <prefix>/bin/waitpid
Usage
-----
To use `waitpid`, simply provide the PID of the process you want to wait for as a positional argument:
$ waitpid 1234
You can also specify the following options:
-t, --timeout <seconds> Set a timeout in seconds
-s, --timeout-status <status> Set the timeout status (default: 124)
-v, --verbose Increase verbosity
-h, --help Display help information and exit
-V, --version Display version information and exit
License
-------
This software is licensed under the GNU General Public License version
3 or later. See the COPYING file for more information.