确认crontab内容

#!/usr/bin/expect 
#ver 0.2 by zhou 
set hostname [lindex $argv 0] 
send_user "\n\n<--------------  check $hostname START -------------->\n\n" 
spawn ssh $hostname 
expect "*~]$" 
send "su -\r" 
expect "Password:" 
send "password\r" 
expect "*~]#" 
send "crontab -l\r" 
expect "*~]#" 
send_user "\n\n<--------------  check $hostname END -------------->\n\n" 
expect eof 
close 
exit