I sometimes wish I'd heard of Linux a few years earlier. I didn't graduate high school until 1995, and didn't know much about Usenet until I got to college. Once I did, I learned there was a whole world of interesting, and disgustingly weird/creepy "stuff" on the internet.
Anyway, sometime around 1996/97 I started using Linux (dual booting Win95 because I wasn't ready to try to live there), for all my programming assignment work as the options were to go to campus or dial up over the modem pool (not enough modems!) hoping to get a phone line to do my homework.
Linux was a lot closer to the environment we were coding in, though DJGPP had helped me out a fair amount before I went to a more Unixy environment.
We used a single RS/6000 running some version of AIX for email, usenet, and programming assignments across a student body of nearly 6000 of us kids... What a time! We made unwise use of telnet, "talk", finger, even learned to do so across the internet to other Unix machines we found. In our spare time we played Doom, Quake, Duke Nukem 3d, Descent. We played around with token ring networks, 10base-T ethernet, GNU Hurd, FreeBSD.
The closest I get to feel to those nostalgic days is messing around with Plan 9 and 9front nowadays. So happy it's been MIT licensed (just this year), and Inferno also.