一个检测网络连通性的shell脚本(图文)
时间:2014-10-01 09:08 来源:linux.it.net.cn 作者:it
检测网络连通性的shell脚本，代码如下：
复制代码代码示例:
#!/bin/bash
# check host alive
# At 2013-7-22
#declare var
GATEWAY=`cat /etc/sysconfig/network-scripts/ifcfg-eth0 | grep 'GATEWAY=' | sed 's/^.*GATEWAY=//g'`
NAMESERVER=`cat /etc/resolv.conf | grep 'nameserver ' | sed 's/^.*nameserver //g'`
ping -c 5 127.0.0.1
if [ "$?" != "0" ]; then
echo "the interface error"
fi
ping -c 5 $GATEWAY
if [ "$?" != "0" ]; then
echo "the gateway is unreachable"
fi
ping -c 5 $NAMESERVER
if [ "$?" != "0" ]; then
echo "the remote host is down"
fi
exit 0
代码说明：
1，GATEWAY=`cat /etc/sysconfig/network-scripts/ifcfg-eth0 | grep 'GATEWAY=' | sed 's/^.*GATEWAY=//g'`
获取网关信息。
2，NAMESERVER=`cat /etc/resolv.conf | grep 'nameserver ' | sed 's/^.*nameserver //g'`
获取dns信息。
3，以上代码检测5次本地回环地址127.0.0.1。
检测5次网关是否连通。
检测5次dns是否申通。
分别给出检测结果提示。
(责任编辑：IT)
检测网络连通性的shell脚本，代码如下：
复制代码代码示例:
#!/bin/bash
# check host alive # At 2013-7-22 #declare var GATEWAY=`cat /etc/sysconfig/network-scripts/ifcfg-eth0 | grep 'GATEWAY=' | sed 's/^.*GATEWAY=//g'` NAMESERVER=`cat /etc/resolv.conf | grep 'nameserver ' | sed 's/^.*nameserver //g'` ping -c 5 127.0.0.1 if [ "$?" != "0" ]; then echo "the interface error" fi ping -c 5 $GATEWAY if [ "$?" != "0" ]; then echo "the gateway is unreachable" fi ping -c 5 $NAMESERVER if [ "$?" != "0" ]; then echo "the remote host is down" fi exit 0
代码说明： (责任编辑：IT) |