企业内部网段检测有多少主机存活——shell脚本传参（二）

企业内部网段检测有多少主机存活前言：这个脚本初衷来自于之前看了网络班苟国齐

的空间发布的脚本，今天改版了一下，感觉挺方便的。
环境简介：

IP地址段	外网	内网
10.0.0.0	Yes	No
172.16.1.0	No	Yes

1).编写脚本

[root@db02 oldboy20160103]# cat check_hosts.sh
#!/bin/bash
#no.1 Check functions
[ ! -f /etc/ini.d/functions ] && source /etc/init.d/functions
#no.2 judge $1
[ $# -ne 1 ] && {
echo "USAGE: $0 IPaddr"
exit 1
}
#no.3
PING="ping -w1 -c 1"
IP=$1
#no.4
for n in `seq 10`
do
{ $PING $1${n} &>/dev/null
if [ $? -eq 0 ]
then
action "$1${n} is online" /bin/true
else
action "$1${n} is gone" /bin/false
fi
}
done

2).执行脚本

[root@db02 oldboy20160103]# sh check_hosts.sh 10.0.0.
10.0.0.1 is online                                         [  OK  ]
10.0.0.2 is online                                         [  OK  ]
10.0.0.3 is gone                                           [FAILED]
10.0.0.4 is gone                                           [FAILED]
10.0.0.5 is gone                                           [FAILED]
10.0.0.6 is gone                                           [FAILED]
10.0.0.7 is online                                         [  OK  ]
10.0.0.8 is online                                         [  OK  ]
10.0.0.9 is gone                                           [FAILED]
10.0.0.10 is gone                                          [FAILED]

提示：10.0.0.1 是我的NAT桥接地址，10.0.0.1 是我的NAT网关地址。

[root@db02 oldboy20160103]# sh check_hosts.sh 172.16.1.
172.16.1.1 is gone                                         [FAILED]
172.16.1.2 is gone                                         [FAILED]
172.16.1.3 is gone                                         [FAILED]
172.16.1.4 is gone                                         [FAILED]
172.16.1.5 is gone                                         [FAILED]
172.16.1.6 is gone                                         [FAILED]
172.16.1.7 is online                                       [  OK  ]
172.16.1.8 is online                                       [  OK  ]
172.16.1.9 is gone                                         [FAILED]
172.16.1.10 is gone                                        [FAILED]

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