Same era we had a backup that wrote to a DAT tape "/dev/nrst0", Somebody mis-typed it and the backups were all going to a file "/dev/nstr0" - we only noticed wh

Same era we had a backup that wrote to a DAT tape "/dev/nrst0", Somebody mis-typed it and the backups were all going to a file "/dev/nstr0" - we only noticed when somebody claimed they could read the backup with the tape ejected ! SunOS version mid 1990s - you had to be root to run the backup script AND you could create files in /dev without warning AND / and /home were in the same partition so it had lots of space