linux進程監控shell指令碼代碼_linux shell

為確保php頁面在後台運行，寫了一個監控指令碼，假設程式異常退出，那麼可以自動重啟。

shell指令碼/usr/local/scripts/receve.sh內容：

#!/bin/bash#funtion:keep receve.php runningPHP="/usr/local/php5/bin/php"PROGRAM="receve.php"#start dameo$PHP /home/httpd/$PROGRAM >>/usr/local/scripts/phpshell/receve.out &chpid="$!";echo "$chpid" > /usr/local/scripts/phpshell/receve.sidecho "child pid is $chpid"echo "status is $?"while [ 1 ]dowait $chpidexitstatus="$?"echo "child pid=$chpid is gone, $exitstatus" >>/usr/local/scripts/phpshell/receve.php_error.logecho `date` >> /usr/local/scripts/phpshell/receve.php_error.logecho "**************************" >>/usr/local/scripts/phpshell/receve.php_error.logsleep 10$PHP /home/httpd/$PROGRAM >> /usr/local/scripts/phpshell/receve.out &chpid="$!";echo "$chpid" > /usr/local/scripts/phpshell/receve.sidecho "next child pid is $chpid"echo "next status is $?"done

需要保證監控指令碼正常運行，在每天淩晨自動重啟指令碼/usr/local/scripts/restart_r.sh，寫入crontab：

#!/bin/bashecho "" >/tmp/receve_pid.txt/bin/ps ax | /bin/grep "receve.sh" | /bin/grep -v "grep" | /bin/awk '{print $1}' >/tmp/receve_pid.txtno1pid=`cat /tmp/receve_pid.txt | sort -r`no2pid=`cat /usr/local/scripts/phpshell/receve.sid | sort -r`if [ -z $no1pid ];then  echo "receve.sh pid is null, receve.sh is not running." else    /bin/kill -9 "$no1pid"    echo "receve.sh killed"fisleep 3if [ -z $no2pid ];then  echo "receve.php pid is null, receve.php is not running." else  /bin/kill -9 "$no2pid"  echo "receve.php killed"firm -rf /usr/local/scripts/phpshell/receve.sid sleep 3 /usr/local/scripts/receve.sh > /dev/null &

crontab：

複製代碼 代碼如下:

#restart receve.sh
10 00 * * * /usr/local/scripts/restart_r.sh

注意：指令碼命名要避免重複，避免自己kill掉自己的進程。