[ansible] the ansible shell encountered the problem of $symbol in awk when executing remote commands

Preface

In the use of ansible coordination awk Naming times error .

The original order ：

ansible presto -m shell -a "ps -ef|grep -i presto |grep -v grep|awk '{print $2}' |xargs jstack |grep JNI"

extract presto process pid Back to failure , as a result of ansible Set category awk Of $ There is a problem with the symbol

Solution ：

take $ The symbols are escaped

ansible presto -m shell -a "ps -ef|grep -i presto |grep -v grep|awk '{print \$2}' |xargs jstack |grep JNI"

Or write the command as a script , Remote script execution