Дана 25/12/20 04:00PM, [email protected] написа:
> Before you complain about my daemon= line, I agree it is better
> to make a copy of the script and put the full-path-to-the-daemon
> in there!
>
> I wanted a generic way to find the path to the daemon that would
> not be influenced by the caller's PATH. (safety, consistency)
A bit safer (not dependant on PATH) might be something like:
#!/bin/ksh
prog=${0##*/}
if [ -x /usr/sbin/"$prog" ]; then
daemon=/usr/sbin/"$prog"
elif [ -x /usr/local/sbin/"$prog" ]; then
daemon=/usr/local/sbin/"$prog"
else
exit 1
fi
. /etc/rc.d/rc.subr
rc_cmd $1
This way, if the executable is moved from /usr/local/sbin to /usr/sbin,
the transition is seamless, but other directories in PATH or default
search path are not considered. The if-construct is used deliberately
instead of altering PATH, to preserve it for $prog.
