While not a globally popular editor, it's definitely one with a proud following and useful features. If you'd like to continue to use TECO, especially in environments that were TECO-challenges, check this:
TECO is available for a wide variety of platforms, with a distribution for any likely desktop of choice!
eMGeeon October 22 2012 10:17
That's interesting, very nice! Thanks for sharing.
Kelbellon November 20 2012 03:51
It seems significant that in the last 38 years TECO is the only utility that I still regularly use -- however, it seems more retained in my fingers than in my brain. I can write TPU and awk proficiently, but sometimes TECO is just the only way to go.