This is immensely important for technical people who are pushing the envelope or working on custom behaviors.

It's always best to go to the source code, when available, to understand what is going on under-the-hood and to add custom code.

Arguably, reading C or C++ code is a lot more difficult than reading PHP or Javascript or Python or C#, etc. at least for me, I find C or C++ is too down-in-the-weeds to easily grasp the functionality of the code.

I spend a lot of time coding, I mean a LOT Of time coding, and at least for me, writing code is a kind of digital artistic poetry, where bug hunting makes me smile and odd behavioral issues turn me into a kind of Sherlock Holmes for code.

Side story:

I was in truck riding along in the mountains with a US-born web developer turned real-estate agent recently. We were talking about coding and he told me he often slams the keyboard down or yells at his computer when coding and doing IT. He looked at me for affirmation of his frustration. I told in in reply that I mostly get joy from IT and coding, and often find myself smiling when bug hunting and when things do not go as expected. In fact, I told him that I find it hard to have any emotions when coding and problem solving, except for joy, and when I wake up in the morning, I am really excited to have that cup of java and login and code solutions my mind figured out when I was asleep.

Sometimes even here, I see people getting emotional over something (recently a moderator threatened to quit because they don't like some of my code changes and the transitions I am working on here). I am surprised by this and this has led to be believe I've been working in IT for so long, that writing code brings me truly great joy. Negative emotions are not really useful and so I don't have them over anything. However, I see a lot of IT people carry around with them a lot of frustration and anger and emotions related to IT and technology (mostly the middle aged and much older IT people, not the younger generation).

Anyway, I'm well off topic.

My point is that IT is a joy, coding is not some "geeky thing for losers" but it is a blessing and a great way to use your mind. Jim was right on to suggest looking at the ksh source for DevuanFan's custom ideas; and I hope DevuanFan will read the source and post back the code, the details he learned and his proposed solution

If you are in IT and do not love to code, search code, read code, write code, you are in the wrong business or hobby!