Terminals are text. Text adds features missing from gui namely:

* Ad Hoc

requirements change and terminal gives ultimate empty workbench flexibility. awesome for tasks you never new you had until that moment.

* Precision

run precisely what you want, when you want it. you are not constrained by gui UX limits.

* Pipeline

cat file.txt | perl/awk/sed/jq | tee output.result

* Equal Status

everything is text so you can combine clipboard, files, netcat output, curl output and then you can transform (above) and save. whatever you like in whatever form you like, named whatever you like.