NAME wall - write a message to users CONTENTS Synopsis Description See Also History Bugs SYNOPSIS wall [-g group] [file] DESCRIPTION The wall utility displays the contents of file 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 messages.
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 messages.