Shell Programming and Scripting

Thanks, so backing up.

I have a text file with values of pa and pb like this:

Code:

1.3 5.6
1.3 5.8
1.3 6.0
etc etc

I have a script that currently does the following:

Code:

## loop through possible values
for var1 in 1 2
do
for var2 in 2 3
do
for pa in 5 6 7
do
for pb in 7 8 9
do

sed -e "s/.*var1.*/$var1 var1/g" -e "s/.*var2.*/$var2 var2/g" -e "s/.*pa.*/$pa pa/g" -e "s/.*pb.*/$pb pb/g" param.def > param.tmp

So the sed command says: wherever you see "var1" in param.def, replace with $var1 and text var1. So the row looks like "$var1 var1". Similar to var2, pa, and pb.

The difference is that I have produced a variety of pa and pb values already in a separate text file. I would somehow like to introduce a method to read these line by line as $pa and $pb, and still be replaced in this other file via sed. Does that make sense?