neth0

This script helps you to manage your network configurations

Options

-a, -ip                 Change the IP address
-n, -netmask            Change the netmask
-g, -gw, -gateway       Change the default gateway
-i, -interface          Change the interface on which change the specifications. Default is your ethernet one
-d, -dns                Change the dns server
--no-ip                 Don't modify the ip
--no-netmask            Don't modify the netmask
--no-gw, --no-gateway   Don't modify the default gateway
--no-dns                Don't modify the dns server
--default-values        Change the ip, netmask, gateway, dns to default values. If no other options are specified:
                                ip:        192.168.1.160
                                netmask:   255.255.255.0
                                gateway:   192.168.1.1
                                dns:       192.168.1.1
                                interface: your ethernet one

Usage example

Change the ip to 175.15.8.12 and subnet 255.255.255.0

./setup.sh -ip 175.15.8.12 -netmask 255.255.255.0
# or
./setup.sh -ip 175.15.8.12 -netmask 24

Change the gateway to 192.168.5.1 and dns to 192.168.6.200

./setup.sh -gw 192.168.5.1 -dns 192.168.6.200

Change the configuration to default values without modifying the current ip and set the dns to 192.168.1.200

./setup.sh --default-values --no-ip -d 192.168.1.200

Warnings

• All the options have the priority on --default-values one
• If using, for example, -ip or -a and --no-ip flags together, the last one has the priority:
  

./setup.sh -a <ip> --no-ip # no ip changed

./setup.sh --no-ip -a <ip> # ip changed to <ip>

Contribution

You can contribute in any way. One of the things i'd like to implement are

• get rid of the ifconfig command and only use ip one
• Allow user to set netmask and ip separately even with ip command
• Allow user to set the netmask as prefix length or as x.x.x.x
• Avoid displaying error message when, for example, no argument are passed to tr in count() function. Use customs one instead