4.4BSD/usr/share/man/cat1/wall.0

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WALL(1)                      BSD Reference Manual                      WALL(1)

NNAAMMEE
     wwaallll - write a message to users

SSYYNNOOPPSSIISS
     wwaallll [_f_i_l_e]

DDEESSCCRRIIPPTTIIOONN
     WWaallll displays the contents of _f_i_l_e or, by default, its standard input, on
     the terminals of all currently logged in users.

     Only the super-user can write on the terminals of users who have chosen
     to deny messages or are using a program which automatically denies mes-
     sages.

SSEEEE AALLSSOO
     mesg(1),  talk(1),  write(1),  shutdown(8)

HHIISSTTOORRYY
     A wwaallll command appeared in Version 7 AT&T UNIX.

4th Berkeley Distribution        June 6, 1993                                1