procps is the package which contains free(1), pgrep(1), pkill(1), pmap(1), skill(1), snice(1), tload(1), top(1), uptime(1), w(1), watch(1), sysctl(8), vmstat(8), and the libproc library.
The procps package is maintained by Robert Love and Rik van Riel. Michael Johnson is the original creator. Numerous individuals have contributed over the years.
A procps package most assuredly came with your distribution. The procps source
may be obtained from CVS on
cvs -d :pserver:email@example.com:/cvs/procps login anoncvs
cvs -d :pserver:firstname.lastname@example.org:/cvs/procps co procps
You may also browse the source via CVSWEB.
Please send bug reports, patches, and feedback to: procps-list at redhat dot com