shell 9 -管理重任- 向用户终端发送消息

  1 #!/bin/bash
  2 set -x
  3 USER=$1
  4 devices=`ls /dev/pts/* -l | awk '{print $3, $10}'| grep $USER | awk '{ print $2}'`
  5 for dev in $devices
  6 do
  7         cat /dev/stdin > $dev
  8         echo $dev
  9 done

test中  测试下。。。

./wall.sh user  < test