Command Line Search Tools for Programmers

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Command Line Search Tools for Programmers image

Over the last several years, I’ve improved my command line searches through a few tools geared towards programmers. These tools help developers find phrases and patterns in text files in an unfamiliar codebase without the complexity of grep.

Searching for a unique string or keyword is an excellent way to find out where functionality is located without jumping into a text editor. Another use I have is finding previous commands that you ran via history and using a tool like grep to filter down lines that match a given pattern.

The following is a list of five command line search tools that will help you as a developer if you are interested in using the command line more for finding code, text, and files quickly without relying on an editor or an IDE.

Some of the tools are ‘nix only, but I’ve listed a few that are cross-platform and ridiculously fast!


The nice benefit of using grep is that it’s available on pretty much any ‘nix distribution you might use. Its utility is powerful in many different contexts, and I’ll show you a few of my favorite:

If you want to find a phrase in only PHP files and output the line number:

$ grep -RHn --include \*.php Controller .

Let’s say you typed a command into the console a few days ago but you only recall part of the command. You can pipe (|) the history command to search with grep:

$ history | grep "php artisan"

You can pipe all of CLI tools listed in this article, but I find I just need a simple grep which filtering history. A nice side-effect is that the filtered results will give you a number at the beginning and you can use it to re-run the command:

$ history | grep 'php artisan'
284 php artisan route:list
$ !284
$ php artisan route:list


Ack is “a tool like grep, optimized for programmers.” It searches recursively by default (i.e., your project) while ignoring VCS directories like .git and has convenient tools that help you explore code with fewer keystrokes.

Taking the same grep example, here’s how we would search for “Controller” in only PHP files:

# Ack
$ ack Controller --php
# Here's the grep example
$ grep -RHn --include \*.php Controller .

Let’s say that you wanted to search all other types of files except PHP. Each type has a “no” flag:

$ ack Controller --nophp

You can extend ack through an ~/.ackrc file to add custom types like --php. Let’s say that you commonly search in only blade files with something like this:

$ ack @auth --blade
Unknown option: blade
ack: Invalid option on command line

To register the “blade” type, you can add the following to an ~/.ackrc file and then search above will only look in files that end in blade.php:


Here are a few other options you might want as a Laravel developer in the ~/.ackrc file:

# Always use color
# Ignore PhpStorm and NPM
# Add to existing types
# Add new types

Ack looks in various locations for an .ackrc file, but if you want to run ack without any .ackrc file, use the --noenv flag.

You can verify your custom types by running ack --help-types. Ack has a ton of documentation and probably does things I haven’t discovered yet. Check man ack for more information or check ack manual online.

The Silver Searcher

The Silver Searcher is another grep replacement that is similar to ack, but touts faster performance. It ignores files found in a project’s .gitignore file.

You can install Silver Searcher with Homebrew on OS X:

brew install the_silver_searcher

You run The Silver Searcher with the ag command:

$ ag Controller --php

I won’t cover ag in a ton of detail, but if I want to search a lot of files I sometimes reach for ag.


Sift is a grep alternative built with Golang which means that it’s widely available on Linux, Windows, OS X, and others. It’s ridiculously fast, and it has some cool use-cases that replace grep + awk combinations to extract data.

I suggest that you check out the samples to learn about the powerful features in sift.

Using our basic PHP search we’ve used for the other tools, here’s how you’d find “Controller” in PHP files:

# Only PHP
sift --ext php Controller
# Exclude PHP
sift --exclude-ext php Controller


RipGrep aligns itself as similar to The Silver Searcher, but with “the raw speed of GNU grep,” and it works on Mac, Linux, and Windows. The readme claims that RipGrep is generally faster than anything else, touting Rust’s regular expression engine, and honors the .gitignore file like The Silver Searcher.

Here’s how you would search PHP files for “Controller” with RipGrep:

rg --type=php Controller

What’s Next?

Ack is my trusty search tool of choice and I think you will get a lot of value in using it as a grep replacement. I would highly recommend learning how to use ack first, but these tools all have unique features that make them valuable in different ways.

If you need to search large amounts of files (I am looking at you recursive node_modules/ folder) then go for The Silver Searcher, Sift, or RipGrep. In large projects ack is still a decently performant tool but you will notice speed improvements in the other tools.

Paul Redmond photo

Staff writer at Laravel News. Full stack web developer and author.

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