shell脚本删除docker日志、jenkins的build日志和空的none镜像

#!/bin/bash
echo "=========删除jenkins的构建记录===================="
echo "是否删除jenkins的构件记录"
read removeJenkinsBuild
case  "$removeJenkinsBuild"  in
  yes|y|YES|Y)
  #删除jenkins的build开始
  cd /data/mtl/jenkins/jobs/
  localPwd=pwd
  echo "当前目录$localPwd"
  for file in ./*
  do
  if [ -d "$file" ]
  then
    cd $file
    echo "删除的目录$file"
    rm -rf builds modules
    cd -
  fi
  done
  echo "删除build完成"
esac
echo "=========删除docker的log===================="
echo "是否删除docker的日志"
read clearDockerLog
case "$clearDockerLog" in
  yes|y|Y|YES)
  #删除log
  logs=$(find /var/lib/docker/containers/ -name *-json.log)
  for log in $logs
      do
              echo "删除log日志地址 : $log"
              cat /dev/null > $log
      done
esac
echo "=========删除docker的空镜像(images)===================="
echo "是否删除空的none镜像"
read deleteNone
case  "$deleteNone"  in
  yes|y|YES|Y)
    #查询none的镜像
    noneImages=$(docker images | grep "none" | awk '{print $3}')
    for tempImage in $noneImages
        do
            echo "删除的当前镜像：$tempImage"
            docker rmi $tempImage
        done
esac
echo "执行完成..................end"