以下是重启Linux下某进程的shell脚本，以tomcat进程为例：
#!/bin/sh
pid=`ps -ef|grep tomcat|grep -v grep|awk "{print $2}"`
if [ "$pid" = "" ] ; then
echo "tomcat service does not start!"
else
kill -9 $pid
pid1=`ps -ef|grep tomcat|grep -v grep|awk "{print $2}"`
if [ "$pid1" = "" ] ; then
echo "Successfully kill tomcat processes: " $pid
else
echo "tomcat kill process failed!"
exit 1
fi
fi
rm -rf /opt/tomcat/work/*
./startup.sh
pid2=`ps -ef|grep tomcat|grep -v grep|awk "{print $2}"`
if [ "$pid2" = "" ] ; then
echo "tomcat service failed to start!"
else
echo "tomcat service starts successfully:" $pid2
fi