57 lines
1.2 KiB
Bash
57 lines
1.2 KiB
Bash
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#!/bin/bash
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# -*- mode: sh; tab-width: 8; coding: utf-8-unix -*-
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exit 0
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ROLE=base
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usage="
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Usage:
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wall [options] [message]
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Write a message to all users.
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Options:
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-n, --nobanner do not print banner
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-h, --help display this help and exit
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"
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SHORT=nh
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LONG=nobanner,help
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PARSED=$(getopt --options $SHORT --longoptions $LONG --name "$0" -- "$@")
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if [[ $? -ne 0 ]]; then
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echo "$usage"
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exit 2
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fi
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eval set -- "$PARSED"
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while true; do
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case "$1" in
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-n|--nobanner)
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n=y
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shift
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;;
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-h|--help)
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echo "$usage"
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exit 0
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;;
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--)
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shift
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break
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;;
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*)
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exit 3
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;;
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esac
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done
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ps -ef | grep " pts/" | awk '{print $6}' | sort -u > /tmp/terminals_$$.tmp
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ps -ef | grep " tty" | awk '{print $6}' | sort -u | grep -v "pts" >> /tmp/terminals_$$.tmp
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if [ "$n" ]; then
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pre=""
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post=""
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else
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pre="-e \nBroadcast message from $(whoami)@$(hostname) ($(ps ax | grep "^$$" | awk '{ print $2 }')) ($(date +"%a %b %d %H:%M:%S %Y")):\n\n"
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post='\n'
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fi
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cat /tmp/terminals_$$.tmp | while read TTY_TO; do echo $pre"$*"$post | sudo tee /dev/$TTY_TO 1>/dev/null; done
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rm /tmp/terminals_$$.tmp
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