Creating a Secondary IP in Linux using Bash Script (Subinterface)
#!/bin/bash #How to create a sub interface in Linux echo " Create Sub-Interface" echo "" echo "Example input (CIDR): 192.168.1.1/24" read -p "Enter the Sub Interface IP Address: " SUBIFIP echo "You Entered: $SUBIFIP read -p "Enter the Default Gateway: " GATEWAY echo "You Entered: $GATEWAY" ifconfig eth0:0 inet $SUBIFIP route add default gw $GATEWAY
