Building front end for shell scripts
I'm just wondering howto build a gui front end for:
1. A shell script (say bash or csh)
2. An already existing command line program. For example, lets say I wanted to build a gui for cdrecord (I'm not actually doing this, I know front ends already exist for cdrecord, just using cdrecord as an example)
What would I do to start this. I'm not asking for someone to explain the whole process, just looking for what type of language I could use to do something like this. I've heard TK easy and convenient for building graphical front ends but I can't find a good tutorial that will explain designing gui's for already existing programs.
Is it possible to do such a thing?