How can I make 'grep' show a single line five lines above the grepped line?

Question

I\'ve seen some examples of grepping lines before and after, but I\'d like to ignore the middle lines. So, I\'d like the line five lines before, but nothing else. Can this b

Answer 1

This way is easier for me:

grep --no-group-separator -B5 "pattern" file | sed -n 1~5p

This greps 5 lines before and including the pattern, turns off the --- group separator, then prints every 5th line.