Shell遍历文件，对每行进行正则匹配

Shell查看文件的最后5行，并对每行进行正则匹配，代码如下：

#!/bin/sh



pattern="HeartBeat"

tail -n 5 /home/test/log/log_20150205.log | while read line

do

    if [[ $line =~ $pattern ]]

    then

        echo "Match"

    else

        echo "No match"

    fi    

    echo $line

done