shell 修改Jenkins中config文件 增加邮件配置

背景：
Jenkins 中很多项目原先并没有配置build失败触发邮件，手动配置比较费时间。
考虑使用shell脚本修改所有项目的config文件，增加邮件触发配置。

shell脚本：
1.找到jobs下所有的config文件
2.对每个文件sed替换，增加邮件触发设置。

问题：
sed 中用 sed -i "s/${var}/${var2}/g" config.xml
替换 如果变量中有<> / 等特殊字符，会报错。

#!/bin/sh

##add email config to all project

checkWords='<reporters/>'
checkWords2=`cat context.txt`
path=/data/jenkins/jobs


##find all config
find $path  -maxdepth 2 -type f -name "config.xml" > config.txt

###heck email config isExist
#cat config.txt |while read line
#do
  #cat ${line} |grep -E  "${checkWords}|${checkWords2}"
  #cat ${line} |grep "reporters"|wc -l
  #echo ${line}
  #echo $checkWords
  #echo $checkWords2
   #sed -i "s:<reporters/>:<reporters>\n    <hudson.maven.reporters.MavenMailer>\n      <recipients/>\n      <dontNotifyEveryUnstableBuild>false</dontNotifyEveryUnstab
leBuild>\n      <sendToIndividuals>true</sendToIndividuals>\n      <perModuleEmail>true</perModuleEmail>\n    </hudson.maven.reporters.MavenMailer>\n  </reporters>:g"
test.xml
  line='/data/jenkins/jobs/alpha-picture-quality-jni/config.xml'
  if [ `cat ${line} |grep "reporters"|wc -l` -eq "1" ];then
    echo ${line} 1
    sed -i "s:<reporters/>:<reporters>\n    <hudson.maven.reporters.MavenMailer>\n      <recipients/>\n      <dontNotifyEveryUnstableBuild>false</dontNotifyEveryUnstab
leBuild>\n      <sendToIndividuals>true</sendToIndividuals>\n      <perModuleEmail>true</perModuleEmail>\n    </hudson.maven.reporters.MavenMailer>\n  </reporters>:g"
${line}
  elif [ `cat ${line} |grep "reporters"|wc -l` -eq "4" ];then
    echo ${line} 4
  else
    echo ${line} qita
  fi
#done