See surrounding lines in grep
When you search for something with grep, you sometimes need some context for the search results. Use the following arguments for that:
grep -B 2 foo bar.txt # 2 lines before every match grep -A 3 foo bar.txt # 3 lines after every match grep -C 1 foo bar.txt # 1 line before and after every match grep -n 1 foo bar.txt # 1 line before and after every match
