Linux下批量ping某个网段的脚本
比如现在需要对192.168.0.0/24网段的ip进行检查，检查哪些ip现在被占用，哪些ip没有被占用，可以通过ping命令来检查，也可以通过nmap接参数来检查
ping命令脚本如下：
[root@ZFVM-APP-0-172 shell]# vim ping.sh #!/bin/bash . /etc/init.d/functions for var in {1..254}; do ip=192.168.0.$var ping -c2 $ip >/dev/null 2>&1 if [ $? = 0 ];then action "$ip" /bin/true else action "$ip" /bin/false fi done
[root@uatdns01 opt]# bash ping.sh 172.168.0.1 [FAILED] 172.168.0.2 [FAILED] 172.168.0.3 [FAILED] 172.168.0.4 [FAILED] 172.168.0.5 [FAILED] ......... ......... 192.168.0.249 [FAILED] 192.168.0.250 [FAILED] 192.168.0.251 [FAILED] 192.168.0.252 [FAILED] 192.168.0.253 [FAILED] 192.168.0.254 [FAILED]
用nmap需要先安装nmap命令
[root@ZFVM-APP-0-172 shell]# yum install -y nmap [root@ZFVM-APP-0-172 shell]# nmap -v -sP 192.168.0.0/24 |grep down Nmap scan report for 192.168.0.0 [host down] Nmap scan report for 192.168.0.2 [host down] Nmap scan report for 192.168.0.3 [host down] Nmap scan report for 192.168.0.4 [host down] Nmap scan report for 192.168.0.5 [host down] ...... ...... Nmap scan report for 192.168.0.251 [host down] Nmap scan report for 192.168.0.252 [host down] Nmap scan report for 192.168.0.253 [host down] Nmap scan report for 192.168.0.254 [host down] Nmap scan report for 192.168.0.255 [host down]
检查192.168.0.1网关是否可达的脚本
[root@ZFVM-APP-0-161 shells]# vim ping.sh #!/bin/bash ping www.baidu.com -c 4 -W 5 > /dev/null 2>&1 if [ $? -eq 0 ] then echo "网络已通" else echo "网络不可达" fi
执行结果
[root@ZFVM-APP-0-161 shells]# sh ping.sh 网络可通