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bat

A cat clone with syntax highlighting and git integration.

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Apache-2.0★ 51000Source project only — not browser-runnable

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This open-source tool is maintained externally. View the source on GitHub to learn more or run it yourself.

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What is bat?

bat is an open-source command-line tool designed to display the contents of text files with enhanced readability through syntax highlighting and Git integration. It serves as a modern alternative to the traditional 'cat' utility, addressing the need for better code and text file visualization in development workflows. Developers, DevOps engineers, and system administrators use bat to quickly inspect code, configuration files, and logs while leveraging color-coded syntax and version control insights. The tool solves the problem of monotonous plain-text output by providing visual context, reducing errors, and streamlining collaboration through Git-aware features.

How it works

bat is a terminal-based utility that mimics the functionality of the Unix 'cat' command while adding advanced features like syntax highlighting and Git integration. It is built with a focus on improving developer productivity by making text files more readable and context-aware. Its primary purpose is to display file contents in a visually structured format, with color-coded syntax for programming languages and markup formats. This makes it ideal for debugging, reviewing code, and analyzing text files in a terminal environment. bat supports syntax highlighting for over 100 programming and markup languages, including Python, JavaScript, HTML, and Markdown. It automatically detects file types and applies appropriate color schemes, as seen in the syntax highlighting example. Git integration allows users to view diffs between the working directory and the Git index, displaying changes in the left sidebar for quick reference.

How to use it

  1. 1Install bat via package managers (e.g., 'brew install bat' on macOS or 'sudo apt install bat' on Ubuntu). 2. Use 'bat <filename>' to view a file's contents with syntax highlighting. 3. Add '--git' to enable Git diff integration, showing changes relative to the index. 4. Use '-A' to display non-printable characters, useful for debugging formatting issues. Practical tips: Customize themes via configuration files, combine with pipes ('bat <file> | less') for large outputs, and use 'bat --plain' to disable colors for environments that require it.

What it can do

  • cat clone

Use cases

Assumptions and limitations

Assumptions

  • source: https://github.com/sharkdp/bat
  • license: Apache-2.0 — free to use
  • privacy: Self-hosted — you control your data

Limitations

  • Requires Git integration, which may not be available in all environments
  • Limited advanced text editing capabilities compared to dedicated editors
  • Depends on system-specific package managers for installation
  • Syntax highlighting relies on predefined grammars, which may not cover niche languages
  • No built-in support for real-time file monitoring or search functionality

Understanding the result

A cat clone with syntax highlighting and git integration.

Tool details

  • Clearly flagged when a network request is needed.
  • No account, no sign-up, and no tracking of your content.
  • Powered by (Apache-2.0).
Built with
(sharkdp/bat)
License
Apache-2.0
Runs locally
No — requires a network request
Verification
Not yet verified
Input
Query
Output
Text
Open-source source & license

Built with sharkdp/bat. OpenToolVault provides the discovery and browser interface while crediting the original project maintainers.

Built with
License
Apache-2.0
View source on GitHub

Open-source project

License: Apache-2.0Source: this project

OpenToolVault is an independent directory. We are not affiliated with or endorsed by this project.

References

Frequently asked

What is the primary difference between bat and the traditional 'cat' command?

bat enhances the 'cat' command by adding syntax highlighting for code files and Git integration to show version control changes. While 'cat' simply outputs file contents in plain text, bat provides visual context through color-coded syntax and diff highlights, making it more suitable for development workflows.

How does bat achieve syntax highlighting for different file types?

bat uses a library of predefined grammars to detect file types based on extensions (e.g., .js for JavaScript). It then applies color rules specific to each language, similar to how syntax highlighters work in code editors. Users can extend this functionality by adding custom grammars or configuring existing ones.

How do I view a file's contents with bat and display non-printable characters?

Run 'bat -A <filename>' to enable the '--show-all' option, which displays all characters including spaces, tabs, and line breaks. This is particularly useful for debugging files that contain special formatting or hidden characters.

How does bat compare to alternatives like 'highlight' or 'cat'?

bat combines the simplicity of 'cat' with the advanced features of 'highlight', offering syntax highlighting and Git integration out of the box. Unlike 'highlight', which requires separate installation and configuration, bat integrates seamlessly with terminal workflows. It is also more lightweight than full-featured editors like VS Code when used for quick file inspections.

What should I do if bat fails to highlight syntax correctly?

First, ensure the file extension matches the language grammar in bat's configuration. If the issue persists, try updating bat to the latest version. Check for custom grammars that might override default settings, and verify that the file's content does not contain syntax errors preventing proper highlighting.

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