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Monday, January 24, 2011

Wall command in linux

This command has lot of usage to System Administration.
wall command becomes very handy in situation where superuser is forced to restart the machine or need inform other user about next scheduled downtime .

#wall "We are going to restart this server .Kindly log off or save all your work within next 15 minutes"

above message will get displayed on every terminal user of the server .

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