Using document here in Bash script for sending a message to all who is loaded.

  #!/bin/bash wall <<zzz23EndOfMessagezzz23 E-mail your noontime orders for pizza to the system administrator. (Add an extra dollar for anchovy or mushroom topping.) # Additional message text goes here. # Note: 'wall' prints comment lines. zzz23EndOfMessagezzz23 # Could have been done more efficiently by # wall <message-file # However, embedding the message template in a…

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