The shell checks the IP usage in the network segment and counts

#!/bin/bash# Beijing Linux Technology Exchange Group: 76109360n=0s=0for ((i=1; I <=; i++)) do if ping-c 1-w 1 192.168.1. $i >/dev/null; Then Echo-e "\033[31m192.168.1. $i yes\033[0m" Let n= $n +1 else Echo-e "\033[32m192.168.1. $i No 33[0m "Let s= $s +1 fidone echo" $n Yes, $s no "

Note: The ping parameter explanation    

-C: Number of messages

-W: Timeout for response messages

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The shell checks the IP usage in the network segment and counts