bash 需要帮助修改 Shell 脚本以更改 CentOS 上的 IP 地址
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Need help to modify a Shell Script to change ip addresses on CentOS
提问by Varun U
I have a shell script to change IP address (on a CentOS), instead of changing it manually. Here is the script:
我有一个 shell 脚本来更改 IP 地址（在 CentOS 上），而不是手动更改它。这是脚本：
#!/bin/bash
# changeip.sh
usage(){
clear
echo "Usage: # vi /etc/sysconfig/network-scripts/ifcfg-eth0
DEVICE="eth0"
BOOTPROTO=none
NM_CONTROLLED="yes"
ONBOOT=yes
TYPE="Ethernet"
IPADDR=192.168.1.2
GATEWAY=192.168.1.1
newip"
echo "Example: #!/bin/bash
# Shell script input parsing here
system-config-network-cmd -i <<EOF
DeviceList.Ethernet.eth0.type=Ethernet
DeviceList.Ethernet.eth0.BootProto=static
DeviceList.Ethernet.eth0.OnBoot=True
DeviceList.Ethernet.eth0.NMControlled=True
DeviceList.Ethernet.eth0.Netmask=192.168.1.255
DeviceList.Ethernet.eth0.IP=${new_ip_value}
DeviceList.Ethernet.eth0.Gateway=192.168.1.1
ProfileList.default.ActiveDevices.1=eth0
EOF
service network stop
service network start
127.0.0.1"
exit 1
}
new_ip_value=
local_ip_value=$(ifconfig eth0|awk '/inet addr/ {split (,A,":"); print A[2]}')
# call usage() function if filename not supplied
[[ $# -eq 0 ]] && usage
echo "/etc/hosts"
echo "----------------------------------------------------------"
sed -ie 's/'$local_ip_value'/'$new_ip_value'/g' /etc/hosts
sed 's/'$local_ip_value'/'$new_ip_value'/g' /etc/hosts
echo ""
echo "/etc/sysconfig/network-scripts/ifcfg-eth0"
echo "----------------------------------------------------------"
sed -ie 's/'$local_ip_value'/'$new_ip_value'/' /etc/sysconfig/network-scripts/ifcfg-eth0
sed 's/'$local_ip_value'/'$new_ip_value'/' /etc/sysconfig/network-scripts/ifcfg-eth0
echo "The IP of $local_ip_value has successfully been changed to $new_ip_value."
service network restart
exit
I need to add further parameters like:
我需要添加更多参数，例如：
- BOOTPROTO
- ONBOOT
- GATEWAY
- DNS1
- 引导程序
- 开机
- 网关
- DNS1
and so on.
等等。
Could any body let me know how i should modify the script to add these details? My ifcfg-eth0 should ultimately like this:
任何机构都可以让我知道我应该如何修改脚本以添加这些细节吗？我的 ifcfg-eth0 最终应该是这样的：
##代码##Any help is appreciated!
任何帮助表示赞赏！
Thanks!
谢谢！
回答by 6EQUJ5
A much better way to change IP addresses on CentOS is to use the system-network-config-cmdtool.
在 CentOS 上更改 IP 地址的更好方法是使用该system-network-config-cmd工具。
For example:
例如：
##代码##If you run as system-config-network-cmd -eit dumps the existing configuration.
如果您在运行system-config-network-cmd -e时转储现有配置。
