Freebsd 下的 rc.d 里的 脚本模版

#!/bin/sh

if ! PREFIX=$(expr $0 : "\(/.*\)/etc/rc\.d/$(basename $0)\{1}quot;); then
    echo "$0: Cannot determine the PREFIX" >&2
    exit 1
fi

case "$1" in
        start)
                [ -x ${PREFIX}/bandwidthd ] && \
                [ -r ${PREFIX}/bandwidthd/etc/bandwidthd.conf ] && \
                cd ${PREFIX}/bandwidthd && ./bandwidthd &&\
                        echo -n ' bandwidthd'

        ;;
        stop)
        killall bandwidthd && echo -n ' bandwidthd'
        ;;
        *)
        echo "Usage: `basename $0` {start|stop}" >&2
        ;;
esac