regex - How to grep file to find lines like <version>1.1.9-beta</version>? -

looking suggestion cat file | grep regex lines <version>anything</version>.

grep -f '<version>1.1.9-beta</version>' file 

• -f match pattern literal text
• you don't need useless cat
• if mean anything: try grep '<version>.*</version>' file or grep -p '<version>.*?</version>' file , searching xml regex bad idea.