Bash: How to remove all blank lines on all files with an extensions

Question

I'd need to remove all empty lines which are contained in all the files named "pom.xml". I've come up with this:

find . -name 'pom.xml' -exec sed '/^$/d'  {} \;

But it just prints out the output on the screen, which is by the way correct. I'd need however to change the files with that command. Any help? Thanks

Answer 1

Try to add -i flag to sed, which means instantly change the file in place, instead of output the result.

find . -name 'pom.xml' -exec sed -i '/^$/d'  {} \;