I prefer https://linux.die.net/man/1/write https://linux.die.net/man/1/write to contact a specific user on a console (if they have `mesg y`). Learnt it and play

I prefer https://linux.die.net/man/1/write https://linux.die.net/man/1/write to contact a specific user on a console (if they have `mesg y`). Learnt it and played a lot with it during high school days on an HP-9000 where terminals were actual dumb terminals. It was fun!