服务管理程序，检测服务是否存在，如果不存在，启动它

 1 #!/bin/bash
 2 
 3 PS=/bin/ps
 4 PS_OPTION=auxwww
 5 KILL=/bin/kill
 6 
 7 date=`date +%F`
 8 time=`date +%X`
 9 
10 cd /home/publish/projects/gsps/src/daemon/qspider
11 
14         line=`$PS $PS_OPTION | grep qspider_daemon | grep -v grep`
15 
16         if test "$line"
17         then
18                 pid=`echo $line | awk '{print $2;}'`
19                 memres=`echo $line | awk '{print $6;}'`
20 
21                 if test $memres -gt 102400
22                 then
23                         echo "$date $time -- the spider_daemon has used more than 100M($memres) memory,kill and restart it"
24                         $KILL -9 $pid
25                         sleep 1
26                         ./qspider_daemon /home/publish/projects/gsps/conf/qspider.cfg finance >> /home/publish/projects/gsps/logs/qspider.log &
27                 fi
28         else
29                 echo "$date $time -- the qspider_daemon was dead,restart it"
30                 ./qspider_daemon /home/publish/projects/gsps/conf/qspider.cfg finance >> /home/publish/projects/gsps/logs/qspider.log &
31 
32         fi