新员工入职第一天打开客户端会收到欢迎邮件

[root@mail2 ~]# cat first_mail.sh
#!/bin/bash

#20110523#######

#diff -u /etc/passwd.keep /etc/passwd |grep ^+ |grep -v ^++ |awk -F: '{print $1}'|sed 's/+//' > /etc/userlist.$$

#cat /etc/userlist.$$ |awk '{print "email="$0"@thunderst.com"}' > /etc/sending.$$

#for foo in `cat /etc/sending.$$`
# do
# eval $foo

#sending mail
  mail -s "Welcome to ........." tian.zhiying.com << EOF

欢迎新同学！

【全体】
…

【开发】

【测试】

【其他】

EOF


# done

#remove the difference file
# rm -f /etc/userlist.$$
#remove the sending list file
# rm -f /etc/sending.$$
#backup the latest passwd file
# cp -f /etc/passwd /etc/passwd.keep