Shell Programming and Scripting

Hi,

I need to read the parameters from a file and assign them to Global variables. I need to read a specific parameter value every time and pass it to the other script.

Suppose i have a parameter file like PARAM.txt
PAR1= VAL1
PAR2= VAL2
PAR3= VAL3

I want to read PAR2 file and in the next run i need to read PAR3.

can any one suggest me the how to read PAR2 value into global variable GLOB1?

Code:

while read rec
do
     eval "$rec"
done < PARAM.txt
export GLOB1="$PAR1"
......... commands here
export GLBOB1="$PAR2"
........  more commands here

That sets all the PAR[n] variables inside the script. I'm am not clear on the rest of your requirement. In PARAMS.txt there cannot be any spaces around the = otherwise this will not work.