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killall(1M) killall(1M)

NAME

killall - kill all active processes

SYNOPSIS

/usr/sbin/killall [signal ]

DESCRIPTION

killall is a procedure used by /usr/sbin/shutdown to kill all active processes not directly related

to the shutdown procedure.

killall is chieﬂy used to terminate all processes with open ﬁles so that the mounted ﬁle systems are no

longer busy and can be unmounted. killall sends the speciﬁed signal to all user processes in the sys-

tem, with the following exceptions:

the init process;

all processes (including background processes) associated with the terminal from which killall

was invoked;

any ps -ef process, if owned by

root;

any

sed -e process, if owned by

root;

any

shutdown process;

any killall process;

any /sbin/rc process.

killall obtains its process information from ps, and therefore may not be able to perfectly identify

which processes to signal (see ps(1)).

If no signal is speciﬁed, a default of 9 (kill) is used.

killall is invoked automatically by shutdown

The use of shutdown is recommended over using

killall by itself (see shutdown(1M)).

FILES

/usr/sbin/shutdown