Shell script batch Telnet IP Port

Check the HTTP proxy to check whether the proxy service is normal. You need to ping the XXXXX port on the proxy machine.

Because the number of machines is too large, You Need To Batch Execute Telnet commands.

The script is as follows:

 

Port = xxxxxcount = 0for I in $ (cat ip_list.dat) Do (count ++) echo "Count = $ count" # keyCode, 1 s automatically ends telnet (sleep 1 ;) | Telnet $ I $ port> telnet_result.txtdone # Ping ipcat telnet_result.txt | grep-B 1 \] | grep [0-9] | awk '{print $3} '| cut-d '. '-F, 3, 4> telnet_alive.txt # difference set to ping different ipcat ip_list.dat telnet_alive.txt | sort | uniq-u> telnet_die.txt
 

 

Refer:

Http://blog.csdn.net/edei2004/article/details/3694021