“Nesting” Variables in bash

Many thanks to “Gavin Smith” on stackoverflow.com for the first part of this tip. Expressions like ${${a}} do not work. To work around it, you can use eval: b=value a=b eval aval=\$$a echo $aval Output is value Thanks for the tip Gavin! Ok, so why would you want to? For me, I needed to test … [Read more…]