Sincere thanks. I'm delighted to see an experienced programmer in this group. I'll put this email in my saved box. But I must apologize for mostly being sarcastic about a long list of emails from this group that mostly said nothing. I feel very comfortable programming and learning more Tcl/Tk/iWidgets from the wonderful HTML documentation and examples. Same with other Linux capabilites. Most of my innovative time is spent pushing cellulosic biofuels. As a biophysicist I've copied the nervous system to push fiber optic networking in the early 1980s, now I don't understand the gunked up internet. These days I copy fire, and think we can create a lot of higher value fuel by vaporizing cellulose with concentrated sunlight. The Raspberry Pi, or Arduino Uno could control a lot of mirrors. But everybody is an expert and there are dozens of variations on solar energy and cellulosic derived fuels. There is a lot of big money, public and private, chasing this around the world in the name of climate change and energy security. People also talk about "smart grid" and "load balancing" the electric grid. As best I'm able, I contribute the biophysical chemistry but would love to churn out code at a warm desk instead. I wish I could suggest something specific for your kind offer. Just like developing the internet and integrated circuits in the 1980s, we need a new economic gameplan today. And it will involve computers and energy, IMHO. There are quite a few groups in the state active in this area. David S.Cargo wrote: > On Sat, 03 Jan 2015 06:29:38 -0600, Rick Engebretson<eng at pinenet.com> > wrote: > >> Perhaps a better string editing language than "sed" is Tcl. It will do >> most any "glob" or "regex" string handling, and most anything else. The >> Tcl array and list tools are worth learning. > > I've been a Tcl programmer since 1997, and still use it, although I'm > not employed as a computer programmer any more. (I wish I was, but > that's not the way the world has worked.) > > If you've got come questions about Tcl specifically, I'd be happy to > answer them (or try to answer them). > > I still use it to develop scripts to manage different pools of > information that I have. > > Regards, > > escargo >