Use Variable to echo another Variable 2

[TSch]

Hi folks,

I'm not sure how to explain my problem ...

I'm using a lot of variables. Let's say e.G.

AA=Hello
BB=How
CC=Where

Next I do something like:

read input

Where "input" can be "AA", "BB", "CC".

Now the tricky part is:
I'd like to get the content of the variable name I entered into the input variable so that if someone enters "AA" the echo would produce me a "Hello" on screen.

I tried something like this:

echo \$$input

But this would only give me the following in return:

$AA

Any ideas ?

Regards,
Thomas

 

[SamBones]

Try this...

eval echo \$$input

The "[tt]eval[/tt]" causes the line to be parsed twice. The backslash protects the first dollar sign to make it to the second parsing.

 

[PHV]

And if you want to store the value before echoing:
eval newvar="\$$input"; echo $newvar

Hope This Helps, PH.
FAQ219-2884
FAQ181-2886

 

[TSch]

Perfect, exactly what I need ...

Thanks a lot everyone !