WALL(1,C) AIX Commands Reference WALL(1,C) ------------------------------------------------------------------------------- wall PURPOSE Writes a message to all logged-in users. SYNTAX +------+ wall ---| |---| +- -L -+ DESCRIPTION The wall command reads a message from standard input until it reaches an end-of-file character. It then sends the message to all logged-in users preceded by the following heading: Broadcast Message from user (/machinename/dev/tty##) Day Mon dd hh:mm To override any protections other users have set up, you must be operating with superuser authority. Typically, root uses wall to warn all users of an impending system shutdown. If you are writing a message to all logged-in users on a system on which users have selected different character code sets for displaying text in different languages, the message should be written using ASCII characters so that it displays consistently for all users. FLAG -L Message is not to be broadcast to users logged in to remote cluster sites. FILES /dev/tty* Default terminal devices. RELATED INFORMATION See the following commands: "mesg," "su," and "write." Processed November 8, 1990 WALL(1,C) 1