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ipcalc
===
简单的IP地址计算器
## 补充说明
**ipcalc命令** 是一个简单的ip地址计算器可以完成简单的IP地址计算任务。
### 语法
```
ipcalc(选项)
```
### 选项
```
-b由给定的IP地址和网络掩码计算出广播地址
-h显示给定UP地址所对应的主机名
-m由给定的IP地址计算器网络掩码
-p显示给定的掩码或IP地址的前缀
-n由给定的IP地址和网络掩码计算网络地址
-s安静模式
--help显示帮助信息。
```
### 实例
```
[root@localhost ~]# ipcalc -p 192.168.2.1 255.255.255.0
PREFIX=24
[root@localhost ~]# ipcalc -n 192.168.2.1 255.255.255.0
NETWORK=192.168.2.0
[root@localhost ~]# ipcalc -h 127.0.0.1
hostname=localhost.localdomain
[root@localhost ~]# ipcalc -m 192.168.2.1
NETMASK=255.255.255.0
[root@localhost ~]# ipcalc -pnbm 192.168.2.1 255.255.255.0
NETMASK=255.255.255.0
PREFIX=24
BROADCAST=192.168.2.255
NETWORK=192.168.2.0
```
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