使用 salt 执行 awk 时，发现会执行失败
salt "*" cmd.run " ps -ef|grep NodeManager|grep -v grep|grep org.apache.hadoop.yarn.server.nodemanager.NodeManager|awk '{print $2}'|xargs lsof -p|grep REG|grep /usr/lib/locale/locale-archive"
会发现执行失败 $2 前面需要加转义符号
salt "*" cmd.run " ps -ef|grep NodeManager|grep -v grep|grep org.apache.hadoop.yarn.server.nodemanager.NodeManager|awk '{print \$2}'|xargs lsof -p|grep REG|grep /usr/lib/locale/locale-archive"