Hello,
I've spent hours this morning reading various past forum posts and documentation pages but I can't find exactly what I need.

I'm trying to call a variable with a variable in the name without having to make a third variable.

For example:

path=AB
legAB=50

leg$path

var=leg$path
echo ${!var}=50

A not-recommended way:

eval echo \$leg$path

Hi,
Yep, that works. Why is it not recommended?

You were right, I made a mistake in the original post but it has now been changed.

Because if $path is obtained from user input or an input file, or otherwise not under your control someone could execute code with the permissions of the person executing the script.

If you are using bash 4 or you could switch to ksh93 then an alternative might be associative arrays:

leg=([AB]=50 [CD]=40)
echo "${leg[AB]}"

This is easiest done with read. It's handy because it takes a variable name, which you can construct by any means you want.

 read $A$B <<<"string"

Thanks Scrutinizer and Corona. However, how do you implement "read" to do this? I've been playing with it and reading about it but can't find anything about this usage.

Kind of exactly how I've shown you.

A="abc"
B="def"

read $A$B <<<"string"

read VARNAME