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dynamically echo-ing parameters

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# 1  
Old 09-25-2009
dynamically echo-ing parameters
I have file called vars that has the following init

USER_DB="hello"
USER_DB2="hello2"

These are passwords

I source vars

. vars

But I have a script that will cycle through several databases, but each has its own password. So I need to build my password parameter.

. vars
DB="DB1"
USERNAME="USER"
PASSWORD=$USER"_"$DB
echo $PASSWORD


When I do that I get DB_USER

What I really want is "hello"

which is the actually password that has been source. So I need to build my parameter dynamically. Then echo value of that parameter in memory.
# 2  
Old 09-25-2009
Quote:
Originally Posted by guessingo
I have file called vars that has the following init

USER_DB="hello"
USER_DB2="hello2"

These are passwords

I source vars

. vars

But I have a script that will cycle through several databases, but each has its own password. So I need to build my password parameter.

. vars
DB="DB1"
USERNAME="USER"
PASSWORD=$USER"_"$DB

Code:
eval "PASSWORD=\${USER}_$DB"

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