spot is described as 'Tiny ack-style file search utility. All arguments constitute the search text. No need to wrap most searches in double quotes. Short & written in Bash - just find & grep: you can edit it easily to suit your liking' and is an app in the File Management category. There are five alternatives to spot for Linux, Mac, BSD and Windows. The best alternative is ripgrep, which is both free and Open Source. Other great apps like spot are ack (Free, Open Source), Gawk (Free, Open Source), Mawk (Free, Open Source) and UniversalCodeGrep (Free, Open Source).
Ack is designed as a standalone (one perl file) replacement for 99% of the uses of grep. ack is intelligent about the files it searches. It knows about certain file types, based on both the extension on the file and, in some cases, the contents of the file.
The awk utility interprets a special-purpose programming language that makes it possible to handle simple data-reformatting jobs with just a few lines of code. Gawk is Gnu's interpreter for the awk language.
UniversalCodeGrep (ucg) is an extremely fast grep-like tool specialized for searching large bodies of source code. It is intended to be largely command-line compatible with Ack, to some extent with ag, and where appropriate with grep.