Consider adding zsh and Perl to your toolbelt. Many scripting languages are just as powerful as Perl, but I don't know of anything that has equivalent capability for quick work on the CLI. Check out how the `-pi -E` switches work, for an example: https://perldoc.perl.org/perlrun#-i%5Bextension%5D

Also, jq is amazing and is basically sed for json data.