Question about searching in txt-file

[freggel99]

Hi there,

Is it possible to search in a big txt-file for something and when its found to extract the line to a string for further use? I have no idea where to start...

So an example the file big.txt and in this file i'm looking for 'quickmacros' and anything what is on that line till linebreak has to be copied in a string.

Any help is appreciated