cat a.sh
function joke(){
NUM=0
people_list=$(w | sed '1,2d' | awk '{print $1}')
for user in $people_list
do
if [ $user != "root" ]
then
#echo $user
info=$(w | sed '1,2d' | grep "^$user")
pts=$(echo $info | awk '{print $2}')
while :
do
echo -e "\033[31mhello $NUM world\033[0m" >/dev/$pts
sleep 1
let NUM++
if [ $NUM -gt $1 ]
then
break
fi
done &
echo "pid is $!"
fi
done
}
joke $1
sh a.sh 10
效果如下：
[test@centos-6_5 ~]$ hello 0 world
hello 1 world
hello 2 world
hello 3 world
hello 4 world
hello 0 world
hello 1 world
hello 2 world
hello 3 world
hello 4 world
hello 5 world
hello 6 world
hello 7 world
hello 8 world
hello 9 world
hello 10 world
可以加为定时任务
恶搞普通用户终端shell脚本
原文：http://blog.51cto.com/19941018/2067842
