Hi beerstein
Yes, ifconfig eth0 192.168.1.1 255.255.255.0 at the command line will set the IP address to
192.168.1.1 for the current session. If you want that IP address to survive between reboots, that
is what the /opt/eth0.sh script is for. So if I understand your question, when you want to maintain
a constant IP address, it is stored in /opt/eth0.sh as part of the ifconfig command in that file.