kill.1: mention special meaning of PGID as a PID

PR:	 284158

(cherry picked from commit d6c2d4fe975c70975bdc6bec76d044408f6dcb8c)
This commit is contained in:
artembunichev 2025-01-19 15:58:55 +03:00 committed by Konstantin Belousov
parent 2c0e00dc01
commit fe74df3f9d

View file

@ -87,6 +87,9 @@ group ID of the sender, and for which the process has permission.
.It -1
If superuser, broadcast the signal to all processes; otherwise broadcast
to all processes belonging to the user.
.It - Ns Ar PGID
The signal is sent to all processes that belong to the specified
process group ID (PGID).
.El
.Pp
Some of the more commonly used signals: