title: Search a file in linux and jump to position of the first find
body: <p>I need help with a linux command with which I can search for a string in a text file and go to the first position this string is found and being able to scroll down and up from there.
  I am looking for hours for such command. GREP will only find the occurrences, print them and exit the file. I need to be able to jump to that line and being able to scroll up and down in order to see the other lines around.</p>