一、写网络服务的系统启动脚本
利用case语句开发类似系统启动rsync服务的脚本
代码：
#!/bin/sah
. /etc/init.d/functions
pidfile="/var/run/rsyncd.pid"
start_rsync(){
if [ -f "$pidfile" ]
then
echo "rsync is running"
else
rsync --daemon
action "rsync is started" /bin/true
fi
}
stop_rsync(){
if [ -f "$pidfile" -a -n "$pidfile" ]
then
kill -USR2 `cat $pidfile`
rm -f ${pidfile}
action "rsync is stopped" /bin/true
else
action "rsync have already been rstopped" /bin/false
fi
}
case "$1" in
start)
start_rsync
RETVAL=$?
;;
stop)
stop_rsync
RETVAL=$?
;;
restart)
stop_rsync
sleep 10
start_rsync
RETVAL=$?
;;
*)
echo "USAGE: $0 {start|stop|restart}"
exit 1
;;
esac
exit $RETVAL
测试：
七、Shell脚本高级编程实战第七部
原文：https://www.cnblogs.com/dangjingwei/p/11615808.html
