so that's my question
slackware 14.2

/etc/rc/d/rc.inet1 is just a shell script, so you could always change the configuration file that it sources. That occurs on line 12, the first non-comment line of the script. Don't blame me if you mess up something by doing this, though.

OK so I copy rc.inet? to some place
rename it to start.inet1
same with /etc/rc.d/rc.inet2
change it change name and path the new config file and the path and name of /etc/rc.d/rc.inet2

to use the new settings and to connect eth0 do a

" /etc/rc.d/rc.inet1 stop;./start.inet1 start"

to get back to normal

"./start.inet1 stop;/etc/rc.d/rc.inet1 start "

I don't need the changed network configuration
full time just temporarily

I don't know if it depends on the version of Slackware or something, but I don't have a plain old /etc/rc.d/rc.inet. I have /etc/rc.d/rc.inet1 and /etc/rc.d/rc.inet2, as well as some /etc/rc.d/rc.inet1.conf* files and /etc/rc.d/rc.inetd. So it looks like you can just change line 12 of /etc/rc.d/rc.inet1 to source whatever configuration file you want, and then do:

You could alternatively copy the script to a name you will remember and then edit it instead of just changing the value in place. That would probably be safer and less confusing later on if you forget what you did.

I want to go back and fourth between configurations as needed

I have a sane system that dose what I want it to I don't want to mess that up

I need to write a script that will connect to a flashed wifi
router then run firefox on the WEB GUI of a repeater-bridge
the HUGE PROBLEM is the ip-address,netmask and the gateway address all have to be set because there is NO! DHCP server
running on the disconnected reapeater-bridg
all IP addresses come from the host AP it's wirelessly
connected to

I can connect to NOW by doing a ifconfig wlan0 down configuring the wirded-connection using static IP addresses
and connecting to it with wicd-curses

BUT

I'm going to hand this thing over to a computer illiterate
there is no way in hell he could ever configure a connection
and open a dot-decmal web address with out running a script