Shulou(Shulou.com)06/01 Report--

Editor to share with you how shell saves the stderr output to variables, I believe most people do not know much about it, so share this article for your reference, I hope you can learn a lot after reading this article, let's go to know it!

Save stderr output to variables

$1.rm $((echo 'out'; echo' error' 1 > & 2) 2 > & 11 > / dev/null) $echo $aerrorshell commonly used commands refer to deleting files; 2.echo refers to displaying specified text; 3.cat file name, outputting file contents to basic output; 4.cb, formatting source code; 5.date, current time and date

These are all the contents of the article "how shell saves stderr output to variables". Thank you for reading! I believe we all have a certain understanding, hope to share the content to help you, if you want to learn more knowledge, welcome to follow the industry information channel!

Welcome to subscribe "Shulou Technology Information " to get latest news, interesting things and hot topics in the IT industry, and controls the hottest and latest Internet news, technology news and IT industry trends.