rtprio(1) on FreeBSD

The text eaa1f2baa506, as FreeBSD 7.0-RELEASE, FreeBSD 6.3-RELEASE, FreeBSD 6.2-RELEASE, FreeBSD 6.1-RELEASE, FreeBSD 6.0-RELEASE shipped it.

execute, examine or modify a utility's or process's realtime or idletime scheduling priority