I need to get a value from a file where it is defined as variable1=value1.

So if I do cat file | grep variable1 I get variable1=value1.

I would like to do this inside a script so that variable1 is directly assigned value1.

I thought this might do it: cat file | grep variable1 | sh but it doesn’t.

I know the same can be achieved by additional string processing and declaring variable1 explicitly inside the script, but my idea seems so elegant if I can get it to work. 🙂 And I am 99% sure it’s possible, I just can’t find the missing bit.