# ggreer/the_silver_searcher

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27,072 stars · 1,434 forks · C · Apache-2.0

## Links

- GitHub: https://github.com/ggreer/the_silver_searcher
- Homepage: http://geoff.greer.fm/ag/
- awesome-repositories: https://awesome-repositories.com/repository/ggreer-the-silver-searcher.md

## Topics

`ag` `c` `command-line-tool` `pcre` `search-in-text` `silver-searcher`

## Description

The Silver Searcher is a high-performance text search utility and regex code search tool designed to locate strings and regular expressions within plain text and source code. It functions as a codebase pattern matcher that provides highlighted results with surrounding line context and respects standard ignore files.

The utility includes specialized capabilities for searching inside zlib and lzma compressed archives. It implements high-throughput processing via parallel-threaded file scanning and just-in-time regular expression compilation.

The tool's search and indexing surface covers output formatting with line numbers, search result analysis, and scope limitation through directory depth and symlink management. It also provides search filtering to exclude files and directories based on custom patterns or standard ignore lists.

## Tags

### Development Tools & Productivity

- [Codebase Search Engines](https://awesome-repositories.com/f/development-tools-productivity/developer-utilities-libraries/workflow-productivity-enhancers/developer-productivity-utilities/code-search-utilities/codebase-search-engines.md) — Provides a high-performance search engine optimized for traversing and querying massive file trees and source code patterns.
- [Text Pattern Search](https://awesome-repositories.com/f/development-tools-productivity/text-pattern-search.md) — Provides high-performance searching for strings and regular expressions across source code and plain text files. ([source](https://github.com/ggreer/the_silver_searcher#readme))
- [Command Line Search Utilities](https://awesome-repositories.com/f/development-tools-productivity/developer-utilities-libraries/workflow-productivity-enhancers/developer-productivity-utilities/search-tools/command-line-search-utilities.md) — Ships a high-performance command line utility for searching text patterns across local file systems.
- [File Exclusion Patterns](https://awesome-repositories.com/f/development-tools-productivity/file-exclusion-patterns.md) — Implements mechanisms to ignore specific files and directories during codebase scanning based on custom or standard patterns.
- [Source Code Search Engines](https://awesome-repositories.com/f/development-tools-productivity/source-code-search-engines.md) — Provides a specialized tool for locating programming code snippets and technical implementations using regular expressions.
- [Search Result Highlighters](https://awesome-repositories.com/f/development-tools-productivity/search-result-highlighters.md) — Enhances terminal output with line numbers, surrounding context, and color highlighting for search matches. ([source](https://github.com/ggreer/the_silver_searcher/blob/master/_the_silver_searcher))

### Data & Databases

- [Text Search](https://awesome-repositories.com/f/data-databases/text-search.md) — Implements high-performance keyword and pattern-based text matching across directories.
- [Compressed Data Searching](https://awesome-repositories.com/f/data-databases/compressed-data-searching.md) — Performs pattern matching and querying directly within zlib and lzma compressed archives without full extraction.
- [Memory-Mapped File Access](https://awesome-repositories.com/f/data-databases/data-access-querying/memory-mapped-file-access.md) — Maps files directly into the process address space to reduce copying between kernel and user buffers.
- [Filesystem Search Scopes](https://awesome-repositories.com/f/data-databases/search-indexing-technologies/search-indexing/search-information-retrieval/query-interfaces-dsls/dynamic-search-scopes/filesystem-search-scopes.md) — Restricts search results via directory depth, symlink management, and filename regular expressions. ([source](https://github.com/ggreer/the_silver_searcher/blob/master/_the_silver_searcher))

### Software Engineering & Architecture

- [Codebase Pattern Matchers](https://awesome-repositories.com/f/software-engineering-architecture/pattern-matching-libraries/codebase-pattern-matchers.md) — Locates specific strings within files and provides highlighted results with surrounding line context.
- [Regex Compilation](https://awesome-repositories.com/f/software-engineering-architecture/function-execution-engines/just-in-time-compilers/regex-compilation.md) — Uses just-in-time compilation of regular expressions to maximize search throughput during execution.
- [Multi-Pattern Matching Algorithms](https://awesome-repositories.com/f/software-engineering-architecture/string-matching-algorithms/multi-pattern-matching-algorithms.md) — Employs trie-based structures to identify multiple pattern strings within text simultaneously in a single pass.

### Web Development

- [Multithreaded File Scanning](https://awesome-repositories.com/f/web-development/performance-optimizations/computational-parallelization/parallel-search-engines/multithreaded-file-scanning.md) — Distributes file reading and pattern matching across multiple CPU cores to minimize total search time.