"Look at that one character shorter than grep and just as easy." Well, let's apply that same criteria to searching for two terms: > grep needle haystack|grep

"Look at that one character shorter than grep and just as easy." Well, let's apply that same criteria to searching for two terms: > grep needle haystack|grep silver > ack '(?=silver).*needle' haystack Look at that one character shorter than ack and just 10 times easier. grep wins, by a knockout.