How to parse command line output from c#?

I want to execute an application(command line application) from the C#... and I want after executing this application and providing the input to it, I want to parse the output that will result it. Since, it will output many things, and I want to take, just the things that I need it from it...

How can I do that ??

How can I get the output in the c# and then take only the things I need it from it ??

For executing the command line in C#... I'm thinking to use "Jeff MC" way, that he explained it in this thread Как: выполнить командную строку на C #, получить результаты STD OUT

Большое спасибо