[styczen]

Normal talk in unices system can do that.

Irc have exange data between server and minimalize data trafic.

still irc is better, but meybe in future

[Joker_vD]

There was also `write` [0]. It would literally parse /etc/utmp [1] to find out which terminal the recepient user was logged on, then it would open that terminal and write(2) the message to it. Ah, wonderful user isolation.

[0] https://man.cat-v.org/unix-6th/1/write

[1] https://man.cat-v.org/unix-6th/5/utmp

[riedel]

I still use posix write [1] if there is an incident and i want to talk to the other admins that all try to fix sth. Quite fünf AS the younger ones are always Quote puzzled and feel caught...

[1] https://manpages.org/write