Reference

bindkey(1) on FreeBSD

The text 69cbbe5fd6bb, as FreeBSD 5.3-RELEASE, FreeBSD 5.2.1-RELEASE, FreeBSD 5.2-RELEASE, FreeBSD 5.1-RELEASE, FreeBSD 5.0-RELEASE shipped it.

shell builtin commands

bindkey(1) on FreeBSD now