如何编写一个shell脚本查看某个进程是否在运行

如何编写一个shell脚本查看某个进程是否在运行

嘿嘿：）工作代码，权当例子。看看就明白了。
#!/bin/sh
# Deamon Check Program in U51
# including :
# 1.alarm(above & Motorola & EMX2500 & Alcatel; 2.connect_EMX)
#

while [ 1 ]
do

#for i in $ABOVE_DAEMON
cat $1|while read pathname appname
do
ps -ef |grep -v "grep"|grep "$appname" |awk '{print "echo ",$8,$9}'> check_file
if test -s check_file
then
echo $appname "\t\tis running"
else
cd $pathname
$appname &
if [ $? -ne 0 ]
then
echo "Run '$appname' failed!"
break
else
echo "start '$appname' successed!"
fi

fi
done

echo "-----------------------------------------------------------------\n"

echo "-----------------------------------------------------------------\n\n"

sleep 60
done # done of while

脚本名:a.sh

ps aux | grep a.sh