Environment variable in configuration file

Hi,

I am trying to write a ksh script on Aix needs to read values from a configuration files. I am able to get the fixed value from the configuration file, but I am having a problem getting values using environment variables. for example.

in the config file
local=${COUNTRY}:mycity

in the shell, export COUNTRY=USA

in the script, i can read the value for local in only as "${COUNTRY}:mycity", the ${COUNTRY} doesn't get substituted by the environment variable.


So far I am doing this in the script. assume local_val stores what the script reads from the configuration file for "local" using "cut".

eval temp=\$$local_val
print $temp

I can get the nnnnnUSA:mycity, here the nnnnn is the pid for the script. I don't know why it is there. I have use ${var#pattern} to remove it.

I don't know if there is a nicer and cleaner way to get the value replaced by the environment variable. any ideas?

Thanks.

-d