Index for Section 1

Alphabetical listing for W

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wall(1)
NAME
  wall - Sends a message to all users logged into the local system or to all
  members of a cluster

SYNTAX
  wall [-c file]

OPTIONS
  -c  Send message to all users logged into all members of a cluster.

DESCRIPTION
  The wall command reads from standard input until you press the End-of-File
  key sequence, or takes its input from the contents of file if you specify
  it, and sends the input as a message to all users who are logged in.	The
  message is preceded by the heading:

       Broadcast Message from user@node (tty) at hh:mm

  where user is the user invoking wall, node and tty are the node and
  terminal of that user, and hh:mm is the time of the message.

  To override any protections other users have set up, you must be operating
  with superuser authority.  Typically, the root user uses wall to warn all
  users of an impending system shutdown.

FILES
  /dev/tty*
      To suspend error messages.

  /usr/sbin/clu_wall
      Clusterwide message-sending utility called by the wall command.

SEE ALSO
  Commands:  mesg(1), su(1), talk(1), write(1)

Index for Section 1

Alphabetical listing for W

Top of page