irssi (IRC client)

```
/names *    show users on channel
/whois (nick) (nick)
            yes, two times to see additional info
/leave      leave channel
/join       join channel
ESC+nro     switch to window number
/win clo    close window
/msg        message to somebody
ESC p       show history up
ESC n       show history down
C-n         next window
C-p         previous window
C-l         redraw windows
```