Shell script implements bulk test LAN host whether online _linux shell

Because the local area network host many, the VLAN also many, for often can know the number of on-line host, writes the script to examine the on-line host.

The effect is: the host online display green, the host offline display red results.

Usage:./ping IP Segment For example:./ping 192.168.0

Copy Code code as follows:

#!/bin/bash
Network=$1
for HOST in $ (SEQ 1 254)
do
&nb sp;       ping-c 1-w 1 $NETWORK. $HOST &>/dev/null && result=0 | | Result=1
                If ["$ Result "= = 0];then
                         echo-e "\033[32;1m$network. $HOST is up! \033[0m "
                else
                         echo-e "\033[;31m$network. $HOST is down!\033[0m"
     & nbsp;          fi
Done