generic-poky/meta/recipes-core/initscripts/initscripts-1.0/functions

44 lines
1.1 KiB
Bash

# -*-Shell-script-*-
#
# functions This file contains functions to be used by most or all
# shell scripts in the /etc/init.d directory.
#
# NOTE: The pidofproc () doesn't support the process which is a script unless
# the pidof supports "-x" option. If you want to use it for such a
# process:
# 1) If there is no "pidof -x", replace the "pidof $1" with another
# command like(for core-image-minimal):
# ps | awk '/'"$1"'/ {print $1}'
# Or
# 2) If there is "pidof -x", replace "pidof" with "pidof -x".
#
# pidofproc - print the pid of a process
# $1: the name of the process
pidofproc () {
# pidof output null when no program is running, so no "2>/dev/null".
pid=`pidof $1`
case $? in
0)
echo $pid
return 0
;;
127)
echo "ERROR: command pidof not found" >&2
exit 127
;;
*)
return $?
;;
esac
}
machine_id() { # return the machine ID
awk 'BEGIN { FS=": " } /Hardware/ \
{ gsub(" ", "_", $2); print tolower($2) } ' </proc/cpuinfo
}
killproc() { # kill the named process(es)
pid=`pidofproc $1` && kill $pid
}