That’s what I meant, using your shell to run command line tools to solve your issue at hand. And having a powerful shell with e.g. context dependend autocomplete (and a lot more) helps to speed up that task.

You can do most things by combining simple cmdline tools. E.g. filter out some specific lines from all files in a directory, get the value after the second :, write those to another file and then sort, deduplicate and count them.

This may sound complicated, but it’s pretty easy and fast if your are familiar with a shell. To be that efficient with your shell you want it to actually be powerful and not just a plain text input. Also writing cmdline tools is rather easy compared to a usable GUI tool.