Truclawrote: Thanks a bunch qbv8 (stands for Quick Basic version 8? ) for reminding me times when I was trying to know what a text editor was for...
Speaking about editors ... :
Back in the good old days of IBM /370 I had the opportunity to work in the computer department of a big oil company. They had an IBM /370 and I was programming it in PL/I using punch cards (!). But as the program was so big (many kilo bytes), I got the permission to store the source code onto one of the drum disks. And for performing changes on the source code, I used a batch editor that got commands via punch cards. And why do I tell you this story? Well, the command to change some text in a line was the qbv8 command --- which one day I mistyped starting on the wrong column, and that distroyed the whole data on the drum.
What shall I tell you ... the boss was "not amused" . It took me 48 hours to restore (mostly) everything that was there. These were 48 hours where I got a special security guard standing in the front door and taking care that I am well and working (and do not run away ).
And I never forgot this "adventure" as you can imagine.
Today everybody would blame the software company that wrote this "editor" for unsecure and bad software behaviour, but at the end of the seventies, programs were very unforgiveable. You can still see some "survivors" of this mindset in Unix: type unlink, and you will receive no mercy.