运维工作中检查主机存活是最为常见的工作,如何快速有效的检查大量主机是否正常就变的非常有必要。因此特写此片博文记录该知识点。
方法1:shell脚本之for循环检查hosts主机存活
[root@saltstack shell]# cat ping_for.sh ######################################################################### # File Name: ping_for.sh # Author: mads # Mail: 1455975151@qq.com # Created Time: 2016年07月21日 星期四 21时33分03秒 # Description : this is scripts use to # Version : v1.0 ######################################################################### #!/bin/bash . /etc/init.d/functions RED_COLOR='\E[1;31m' GREEN_COLOR='\E[1;32m' YELLOW_COLOR='\E[1;33m' BLUE_COLOR='\E[1;34m' RES='\E[0m' array=$(sed '/^#/d' hosts|grep -v "::"|awk '{print $1}') for host in ${array[@]} do ping $host -c 10 -w 1 -i 0.01 -q >/dev/null 2>&1 ret=$? if [ $ret -eq 0 ];then echo "$host is ok" else echo "$host is bad" fi done
方法2:shell脚本之while循环检查hosts主机存活
[root@saltstack shell]# cat ping_while.sh ######################################################################### # File Name: ping_while.sh # Author: mads # Mail: 1455975151@qq.com # Created Time: 2016年07月21日 星期四 21时33分03秒 # Description : this is scripts use to # Version : v1.0 ######################################################################### #!/bin/bash . /etc/init.d/functions RED_COLOR='\E[1;31m' GREEN_COLOR='\E[1;32m' YELLOW_COLOR='\E[1;33m' BLUE_COLOR='\E[1;34m' RES='\E[0m' cat hosts| grep -vE "::|#" |while read line do ip=`echo $line|awk '{print $1}'` ping -i 0.01 -c 10 -w 1 -q $ip >/dev/null 2>&1 if [ $? -eq 0 ];then echo "$ip is ok" else echo "$ip is bad" fi done
[root@saltstack shell]# cat hosts # Do not remove the following line, or various programs # that require network functionality will fail. 127.0.0.1 master.strong.com master localhost.localdomain localhost ::1 localhost6.localdomain6 localhost6 192.168.80.1 host1.strong.com 192.168.80.2 host2.strong.com 192.168.80.130 host130.strong.com 192.168.80.4 host4.strong.com 192.168.80.5 host5.strong.com 192.168.80.6 host6.strong.com 192.168.80.7 host7.strong.com 192.168.80.8 host8.strong.com www.baidu.com www.baidu.com www.sina.com.cn www.sina.com.cn www.2345.com www.2345.com