mirror of
https://github.com/sharkdp/bat.git
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809 lines
27 KiB
Markdown
809 lines
27 KiB
Markdown
<p align="center">
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<img src="doc/logo-header.svg" alt="bat - a cat clone with wings"><br>
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<a href="https://github.com/sharkdp/bat/actions?query=workflow%3ACICD"><img src="https://github.com/sharkdp/bat/workflows/CICD/badge.svg" alt="Build Status"></a>
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<img src="https://img.shields.io/crates/l/bat.svg" alt="license">
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<a href="https://crates.io/crates/bat"><img src="https://img.shields.io/crates/v/bat.svg?colorB=319e8c" alt="Version info"></a><br>
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A <i>cat(1)</i> clone with syntax highlighting and Git integration.
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</p>
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<p align="center">
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<a href="#syntax-highlighting">Key Features</a> •
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<a href="#how-to-use">How To Use</a> •
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<a href="#installation">Installation</a> •
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<a href="#customization">Customization</a> •
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<a href="#project-goals-and-alternatives">Project goals, alternatives</a><br>
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[English]
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[<a href="doc/README-zh.md">中文</a>]
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[<a href="doc/README-ja.md">日本語</a>]
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[<a href="doc/README-ko.md">한국어</a>]
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[<a href="doc/README-ru.md">Русский</a>]
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</p>
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### Sponsors
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A special *thank you* goes to our biggest <a href="doc/sponsors.md">sponsors</a>:<br>
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<a href="https://workos.com/?utm_campaign=github_repo&utm_medium=referral&utm_content=bat&utm_source=github">
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<img src="doc/sponsors/workos-logo-white-bg.svg" width="200" alt="WorkOS">
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<br>
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<strong>Your app, enterprise-ready.</strong>
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<br>
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<sub>Start selling to enterprise customers with just a few lines of code.</sub>
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<br>
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<sup>Add Single Sign-On (and more) in minutes instead of months.</sup>
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</a>
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### Syntax highlighting
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`bat` supports syntax highlighting for a large number of programming and markup
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languages:
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![Syntax highlighting example](https://imgur.com/rGsdnDe.png)
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### Git integration
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`bat` communicates with `git` to show modifications with respect to the index
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(see left side bar):
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![Git integration example](https://i.imgur.com/2lSW4RE.png)
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### Show non-printable characters
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You can use the `-A`/`--show-all` option to show and highlight non-printable
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characters:
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![Non-printable character example](https://i.imgur.com/WndGp9H.png)
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### Automatic paging
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By default, `bat` pipes its own output to a pager (e.g. `less`) if the output is too large for one screen.
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If you would rather `bat` work like `cat` all the time (never page output), you can set `--paging=never` as an option, either on the command line or in your configuration file.
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If you intend to alias `cat` to `bat` in your shell configuration, you can use `alias cat='bat --paging=never'` to preserve the default behavior.
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#### File concatenation
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Even with a pager set, you can still use `bat` to concatenate files :wink:.
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Whenever `bat` detects a non-interactive terminal (i.e. when you pipe into another process or into a file), `bat` will act as a drop-in replacement for `cat` and fall back to printing the plain file contents, regardless of the `--pager` option's value.
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## How to use
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Display a single file on the terminal
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```bash
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> bat README.md
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```
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Display multiple files at once
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```bash
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> bat src/*.rs
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```
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Read from stdin, determine the syntax automatically (note, highlighting will
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only work if the syntax can be determined from the first line of the file,
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usually through a shebang such as `#!/bin/sh`)
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```bash
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> curl -s https://sh.rustup.rs | bat
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```
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Read from stdin, specify the language explicitly
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```bash
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> yaml2json .travis.yml | json_pp | bat -l json
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```
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Show and highlight non-printable characters:
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```bash
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> bat -A /etc/hosts
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```
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Use it as a `cat` replacement:
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```bash
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bat > note.md # quickly create a new file
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bat header.md content.md footer.md > document.md
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bat -n main.rs # show line numbers (only)
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bat f - g # output 'f', then stdin, then 'g'.
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```
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### Integration with other tools
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#### `fzf`
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You can use `bat` as a previewer for [`fzf`](https://github.com/junegunn/fzf). To do this,
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use `bat`s `--color=always` option to force colorized output. You can also use `--line-range`
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option to restrict the load times for long files:
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```bash
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fzf --preview 'bat --color=always --style=numbers --line-range=:500 {}'
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```
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For more information, see [`fzf`'s `README`](https://github.com/junegunn/fzf#preview-window).
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#### `find` or `fd`
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You can use the `-exec` option of `find` to preview all search results with `bat`:
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```bash
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find … -exec bat {} +
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```
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If you happen to use [`fd`](https://github.com/sharkdp/fd), you can use the `-X`/`--exec-batch` option to do the same:
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```bash
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fd … -X bat
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```
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#### `ripgrep`
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With [`batgrep`](https://github.com/eth-p/bat-extras/blob/master/doc/batgrep.md), `bat` can be used as the printer for [`ripgrep`](https://github.com/BurntSushi/ripgrep) search results.
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```bash
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batgrep needle src/
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```
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#### `tail -f`
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`bat` can be combined with `tail -f` to continuously monitor a given file with syntax highlighting.
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```bash
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tail -f /var/log/pacman.log | bat --paging=never -l log
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```
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Note that we have to switch off paging in order for this to work. We have also specified the syntax
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explicitly (`-l log`), as it can not be auto-detected in this case.
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#### `git`
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You can combine `bat` with `git show` to view an older version of a given file with proper syntax
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highlighting:
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```bash
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git show v0.6.0:src/main.rs | bat -l rs
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```
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#### `git diff`
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You can combine `bat` with `git diff` to view lines around code changes with proper syntax
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highlighting:
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```bash
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batdiff() {
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git diff --name-only --relative --diff-filter=d | xargs bat --diff
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}
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```
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If you prefer to use this as a separate tool, check out `batdiff` in [`bat-extras`](https://github.com/eth-p/bat-extras).
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If you are looking for more support for git and diff operations, check out [`delta`](https://github.com/dandavison/delta).
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#### `xclip`
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The line numbers and Git modification markers in the output of `bat` can make it hard to copy
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the contents of a file. To prevent this, you can call `bat` with the `-p`/`--plain` option or
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simply pipe the output into `xclip`:
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```bash
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bat main.cpp | xclip
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```
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`bat` will detect that the output is being redirected and print the plain file contents.
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#### `man`
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`bat` can be used as a colorizing pager for `man`, by setting the
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`MANPAGER` environment variable:
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```bash
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export MANPAGER="sh -c 'col -bx | bat -l man -p'"
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man 2 select
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```
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(replace `bat` with `batcat` if you are on Debian or Ubuntu)
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It might also be necessary to set `MANROFFOPT="-c"` if you experience
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formatting problems.
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If you prefer to have this bundled in a new command, you can also use [`batman`](https://github.com/eth-p/bat-extras/blob/master/doc/batman.md).
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Note that the [Manpage syntax](assets/syntaxes/02_Extra/Manpage.sublime-syntax) is developed in this repository and still needs some work.
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Also, note that this will [not work](https://github.com/sharkdp/bat/issues/1145) with Mandocs `man` implementation.
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#### `prettier` / `shfmt` / `rustfmt`
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The [`prettybat`](https://github.com/eth-p/bat-extras/blob/master/doc/prettybat.md) script is a wrapper that will format code and print it with `bat`.
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#### Highlighting `--help` messages
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You can use `bat` to colorize help text: `$ cp --help | bat -plhelp`
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You can also use a wrapper around this:
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```bash
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# in your .bashrc/.zshrc/*rc
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alias bathelp='bat --plain --language=help'
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help() {
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"$@" --help 2>&1 | bathelp
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}
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```
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Then you can do `$ help cp` or `$ help git commit`.
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Please report any issues with the help syntax in [this repository](https://github.com/victor-gp/cmd-help-sublime-syntax).
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## Installation
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[![Packaging status](https://repology.org/badge/vertical-allrepos/bat-cat.svg)](https://repology.org/project/bat-cat/versions)
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### On Ubuntu (using `apt`)
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*... and other Debian-based Linux distributions.*
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`bat` is available on [Ubuntu since 20.04 ("Focal")](https://packages.ubuntu.com/search?keywords=bat&exact=1) and [Debian since August 2021 (Debian 11 - "Bullseye")](https://packages.debian.org/bullseye/bat).
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If your Ubuntu/Debian installation is new enough you can simply run:
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```bash
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sudo apt install bat
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```
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**Important**: If you install `bat` this way, please note that the executable may be installed as `batcat` instead of `bat` (due to [a name
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clash with another package](https://github.com/sharkdp/bat/issues/982)). You can set up a `bat -> batcat` symlink or alias to prevent any issues that may come up because of this and to be consistent with other distributions:
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``` bash
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mkdir -p ~/.local/bin
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ln -s /usr/bin/batcat ~/.local/bin/bat
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```
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### On Ubuntu (using most recent `.deb` packages)
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*... and other Debian-based Linux distributions.*
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If the package has not yet been promoted to your Ubuntu/Debian installation, or you want
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the most recent release of `bat`, download the latest `.deb` package from the
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[release page](https://github.com/sharkdp/bat/releases) and install it via:
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```bash
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sudo dpkg -i bat_0.18.3_amd64.deb # adapt version number and architecture
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```
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### On Alpine Linux
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You can install [the `bat` package](https://pkgs.alpinelinux.org/packages?name=bat)
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from the official sources, provided you have the appropriate repository enabled:
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```bash
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apk add bat
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```
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### On Arch Linux
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You can install [the `bat` package](https://www.archlinux.org/packages/community/x86_64/bat/)
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from the official sources:
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```bash
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pacman -S bat
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```
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### On Fedora
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You can install [the `bat` package](https://koji.fedoraproject.org/koji/packageinfo?packageID=27506) from the official [Fedora Modular](https://docs.fedoraproject.org/en-US/modularity/using-modules/) repository.
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```bash
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dnf install bat
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```
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### On Funtoo Linux
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You can install [the `bat` package](https://github.com/funtoo/dev-kit/tree/1.4-release/sys-apps/bat) from dev-kit.
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```bash
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emerge sys-apps/bat
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```
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### On Gentoo Linux
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You can install [the `bat` package](https://packages.gentoo.org/packages/sys-apps/bat)
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from the official sources:
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```bash
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emerge sys-apps/bat
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```
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### On Void Linux
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You can install `bat` via xbps-install:
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```bash
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xbps-install -S bat
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```
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### On Termux
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You can install `bat` via pkg:
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```bash
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pkg install bat
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```
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### On FreeBSD
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You can install a precompiled [`bat` package](https://www.freshports.org/textproc/bat) with pkg:
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```bash
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pkg install bat
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```
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or build it on your own from the FreeBSD ports:
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```bash
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cd /usr/ports/textproc/bat
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make install
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```
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### On OpenBSD
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You can install `bat` package using [`pkg_add(1)`](https://man.openbsd.org/pkg_add.1):
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```bash
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pkg_add bat
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```
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### Via nix
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You can install `bat` using the [nix package manager](https://nixos.org/nix):
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```bash
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nix-env -i bat
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```
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### On openSUSE
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You can install `bat` with zypper:
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```bash
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zypper install bat
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```
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### Via snap package
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There is currently no recommended snap package available.
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Existing packages may be available, but are not officially supported and may contain [issues](https://github.com/sharkdp/bat/issues/1519).
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### On macOS (or Linux) via Homebrew
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You can install `bat` with [Homebrew](https://formulae.brew.sh/formula/bat):
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```bash
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brew install bat
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```
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### On macOS via MacPorts
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Or install `bat` with [MacPorts](https://ports.macports.org/port/bat/summary):
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```bash
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port install bat
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```
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### On Windows
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There are a few options to install `bat` on Windows. Once you have installed `bat`,
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take a look at the ["Using `bat` on Windows"](#using-bat-on-windows) section.
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#### Prerequisites
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You will need to install the [Visual C++ Redistributable](https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads) package.
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#### With Chocolatey
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You can install `bat` via [Chocolatey](https://chocolatey.org/packages/Bat):
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```bash
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choco install bat
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```
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#### With Scoop
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You can install `bat` via [scoop](https://scoop.sh/):
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```bash
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scoop install bat
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```
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#### From prebuilt binaries:
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You can download prebuilt binaries from the [Release page](https://github.com/sharkdp/bat/releases),
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You will need to install the [Visual C++ Redistributable](https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads) package.
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### From binaries
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Check out the [Release page](https://github.com/sharkdp/bat/releases) for
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prebuilt versions of `bat` for many different architectures. Statically-linked
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binaries are also available: look for archives with `musl` in the file name.
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### From source
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If you want to build `bat` from source, you need Rust 1.60.0 or
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higher. You can then use `cargo` to build everything:
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```bash
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cargo install --locked bat
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```
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Note that additional files like the man page or shell completion
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files can not be installed in this way. They will be generated by `cargo` and should be available in the cargo target folder (under `build`).
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## Customization
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### Highlighting theme
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Use `bat --list-themes` to get a list of all available themes for syntax
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highlighting. To select the `TwoDark` theme, call `bat` with the
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`--theme=TwoDark` option or set the `BAT_THEME` environment variable to
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`TwoDark`. Use `export BAT_THEME="TwoDark"` in your shell's startup file to
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make the change permanent. Alternatively, use `bat`s
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[configuration file](https://github.com/sharkdp/bat#configuration-file).
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If you want to preview the different themes on a custom file, you can use
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the following command (you need [`fzf`](https://github.com/junegunn/fzf) for this):
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```bash
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bat --list-themes | fzf --preview="bat --theme={} --color=always /path/to/file"
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```
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`bat` looks good on a dark background by default. However, if your terminal uses a
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light background, some themes like `GitHub` or `OneHalfLight` will work better for you.
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You can also use a custom theme by following the
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['Adding new themes' section below](https://github.com/sharkdp/bat#adding-new-themes).
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### 8-bit themes
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`bat` has three themes that always use [8-bit colors](https://en.wikipedia.org/wiki/ANSI_escape_code#Colors),
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even when truecolor support is available:
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- `ansi` looks decent on any terminal. It uses 3-bit colors: black, red, green,
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yellow, blue, magenta, cyan, and white.
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- `base16` is designed for [base16](https://github.com/chriskempson/base16) terminal themes. It uses
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4-bit colors (3-bit colors plus bright variants) in accordance with the
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[base16 styling guidelines](https://github.com/chriskempson/base16/blob/master/styling.md).
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- `base16-256` is designed for [base16-shell](https://github.com/chriskempson/base16-shell).
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It replaces certain bright colors with 8-bit colors from 16 to 21. **Do not** use this simply
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because you have a 256-color terminal but are not using base16-shell.
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Although these themes are more restricted, they have three advantages over truecolor themes. They:
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- Enjoy maximum compatibility. Some terminal utilities do not support more than 3-bit colors.
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- Adapt to terminal theme changes. Even for already printed output.
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- Visually harmonize better with other terminal software.
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### Output style
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You can use the `--style` option to control the appearance of `bat`s output.
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You can use `--style=numbers,changes`, for example, to show only Git changes
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and line numbers but no grid and no file header. Set the `BAT_STYLE` environment
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variable to make these changes permanent or use `bat`s
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[configuration file](https://github.com/sharkdp/bat#configuration-file).
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### Adding new syntaxes / language definitions
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Should you find that a particular syntax is not available within `bat`, you can follow these
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instructions to easily add new syntaxes to your current `bat` installation.
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`bat` uses the excellent [`syntect`](https://github.com/trishume/syntect/)
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library for syntax highlighting. `syntect` can read any
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[Sublime Text `.sublime-syntax` file](https://www.sublimetext.com/docs/3/syntax.html)
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and theme.
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A good resource for finding Sublime Syntax packages is [Package Control](https://packagecontrol.io/). Once you found a
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syntax:
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1. Create a folder with syntax definition files:
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```bash
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mkdir -p "$(bat --config-dir)/syntaxes"
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cd "$(bat --config-dir)/syntaxes"
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|
||
# Put new '.sublime-syntax' language definition files
|
||
# in this folder (or its subdirectories), for example:
|
||
git clone https://github.com/tellnobody1/sublime-purescript-syntax
|
||
```
|
||
|
||
2. Now use the following command to parse these files into a binary cache:
|
||
|
||
```bash
|
||
bat cache --build
|
||
```
|
||
|
||
3. Finally, use `bat --list-languages` to check if the new languages are available.
|
||
|
||
If you ever want to go back to the default settings, call:
|
||
|
||
```bash
|
||
bat cache --clear
|
||
```
|
||
|
||
4. If you think that a specific syntax should be included in `bat` by default, please
|
||
consider opening a "syntax request" ticket after reading the policies and
|
||
instructions [here](doc/assets.md): [Open Syntax Request](https://github.com/sharkdp/bat/issues/new?labels=syntax-request&template=syntax_request.md).
|
||
|
||
### Adding new themes
|
||
|
||
This works very similar to how we add new syntax definitions.
|
||
|
||
First, create a folder with the new syntax highlighting themes:
|
||
```bash
|
||
mkdir -p "$(bat --config-dir)/themes"
|
||
cd "$(bat --config-dir)/themes"
|
||
|
||
# Download a theme in '.tmTheme' format, for example:
|
||
git clone https://github.com/greggb/sublime-snazzy
|
||
|
||
# Update the binary cache
|
||
bat cache --build
|
||
```
|
||
|
||
Finally, use `bat --list-themes` to check if the new themes are available.
|
||
|
||
### Adding or changing file type associations
|
||
|
||
You can add new (or change existing) file name patterns using the `--map-syntax`
|
||
command line option. The option takes an argument of the form `pattern:syntax` where
|
||
`pattern` is a glob pattern that is matched against the file name and
|
||
the absolute file path. The `syntax` part is the full name of a supported language
|
||
(use `bat --list-languages` for an overview).
|
||
|
||
**Note:** You probably want to use this option as [an entry in `bat`'s configuration file](#configuration-file)
|
||
for persistence instead of passing it on the command line as a one-off. Generally
|
||
you'd just use `-l` if you want to manually specify a language for a file.
|
||
|
||
Example: To use "INI" syntax highlighting for all files with a `.conf` file extension, use
|
||
```bash
|
||
--map-syntax='*.conf:INI'
|
||
```
|
||
|
||
Example: To open all files called `.ignore` (exact match) with the "Git Ignore" syntax, use:
|
||
```bash
|
||
--map-syntax='.ignore:Git Ignore'
|
||
```
|
||
|
||
Example: To open all `.conf` files in subfolders of `/etc/apache2` with the "Apache Conf"
|
||
syntax, use (this mapping is already built in):
|
||
```bash
|
||
--map-syntax='/etc/apache2/**/*.conf:Apache Conf'
|
||
```
|
||
|
||
### Using a different pager
|
||
|
||
`bat` uses the pager that is specified in the `PAGER` environment variable. If this variable is not
|
||
set, `less` is used by default. If you want to use a different pager, you can either modify the
|
||
`PAGER` variable or set the `BAT_PAGER` environment variable to override what is specified in
|
||
`PAGER`.
|
||
|
||
**Note**: If `PAGER` is `more` or `most`, `bat` will silently use `less` instead to ensure support for colors.
|
||
|
||
If you want to pass command-line arguments to the pager, you can also set them via the
|
||
`PAGER`/`BAT_PAGER` variables:
|
||
|
||
```bash
|
||
export BAT_PAGER="less -RF"
|
||
```
|
||
|
||
Instead of using environment variables, you can also use `bat`s [configuration file](https://github.com/sharkdp/bat#configuration-file) to configure the pager (`--pager` option).
|
||
|
||
**Note**: By default, if the pager is set to `less` (and no command-line options are specified),
|
||
`bat` will pass the following command line options to the pager: `-R`/`--RAW-CONTROL-CHARS`,
|
||
`-F`/`--quit-if-one-screen` and `-X`/`--no-init`. The last option (`-X`) is only used for `less`
|
||
versions older than 530.
|
||
|
||
The `-R` option is needed to interpret ANSI colors correctly. The second option (`-F`) instructs
|
||
less to exit immediately if the output size is smaller than the vertical size of the terminal.
|
||
This is convenient for small files because you do not have to press `q` to quit the pager. The
|
||
third option (`-X`) is needed to fix a bug with the `--quit-if-one-screen` feature in old versions
|
||
of `less`. Unfortunately, it also breaks mouse-wheel support in `less`.
|
||
|
||
If you want to enable mouse-wheel scrolling on older versions of `less`, you can pass just `-R` (as
|
||
in the example above, this will disable the quit-if-one-screen feature). For less 530 or newer,
|
||
it should work out of the box.
|
||
|
||
### Indentation
|
||
|
||
`bat` expands tabs to 4 spaces by itself, not relying on the pager. To change this, simply add the
|
||
`--tabs` argument with the number of spaces you want to be displayed.
|
||
|
||
**Note**: Defining tab stops for the pager (via the `--pager` argument by `bat`, or via the `LESS`
|
||
environment variable for `less`) won't be taken into account because the pager will already get
|
||
expanded spaces instead of tabs. This behaviour is added to avoid indentation issues caused by the
|
||
sidebar. Calling `bat` with `--tabs=0` will override it and let tabs be consumed by the pager.
|
||
|
||
### Dark mode
|
||
|
||
If you make use of the dark mode feature in macOS, you might want to configure `bat` to use a different
|
||
theme based on the OS theme. The following snippet uses the `default` theme when in the _dark mode_
|
||
and the `GitHub` theme when in the _light mode_.
|
||
|
||
```bash
|
||
alias cat="bat --theme=\$(defaults read -globalDomain AppleInterfaceStyle &> /dev/null && echo default || echo GitHub)"
|
||
```
|
||
|
||
|
||
## Configuration file
|
||
|
||
`bat` can also be customized with a configuration file. The location of the file is dependent
|
||
on your operating system. To get the default path for your system, call
|
||
```bash
|
||
bat --config-file
|
||
```
|
||
|
||
Alternatively, you can use the `BAT_CONFIG_PATH` environment variable to point `bat` to a
|
||
non-default location of the configuration file:
|
||
```bash
|
||
export BAT_CONFIG_PATH="/path/to/bat.conf"
|
||
```
|
||
|
||
A default configuration file can be created with the `--generate-config-file` option.
|
||
```bash
|
||
bat --generate-config-file
|
||
```
|
||
|
||
There is also now a systemwide configuration file, which is located under `/etc/bat/config` on
|
||
Linux and Mac OS and `C:\ProgramData\bat\config` on windows. If the system wide configuration
|
||
file is present, the content of the user configuration will simply be appended to it.
|
||
|
||
### Format
|
||
|
||
The configuration file is a simple list of command line arguments. Use `bat --help` to see a full list of possible options and values. In addition, you can add comments by prepending a line with the `#` character.
|
||
|
||
Example configuration file:
|
||
```bash
|
||
# Set the theme to "TwoDark"
|
||
--theme="TwoDark"
|
||
|
||
# Show line numbers, Git modifications and file header (but no grid)
|
||
--style="numbers,changes,header"
|
||
|
||
# Use italic text on the terminal (not supported on all terminals)
|
||
--italic-text=always
|
||
|
||
# Use C++ syntax for Arduino .ino files
|
||
--map-syntax "*.ino:C++"
|
||
```
|
||
|
||
## Using `bat` on Windows
|
||
|
||
`bat` mostly works out-of-the-box on Windows, but a few features may need extra configuration.
|
||
|
||
### Prerequisites
|
||
|
||
You will need to install the [Visual C++ Redistributable](https://support.microsoft.com/en-us/help/2977003/the-latest-supported-visual-c-downloads) package.
|
||
|
||
### Paging
|
||
|
||
Windows only includes a very limited pager in the form of `more`. You can download a Windows binary
|
||
for `less` [from its homepage](http://www.greenwoodsoftware.com/less/download.html) or [through
|
||
Chocolatey](https://chocolatey.org/packages/Less). To use it, place the binary in a directory in
|
||
your `PATH` or [define an environment variable](#using-a-different-pager). The [Chocolatey package](#on-windows) installs `less` automatically.
|
||
|
||
### Colors
|
||
|
||
Windows 10 natively supports colors in both `conhost.exe` (Command Prompt) and PowerShell since
|
||
[v1511](https://en.wikipedia.org/wiki/Windows_10_version_history#Version_1511_(November_Update)), as
|
||
well as in newer versions of bash. On earlier versions of Windows, you can use
|
||
[Cmder](http://cmder.net/), which includes [ConEmu](https://conemu.github.io/).
|
||
|
||
**Note:** The Git and MSYS versions of `less` do not correctly interpret colors on Windows. If you
|
||
don’t have any other pagers installed, you can disable paging entirely by passing `--paging=never`
|
||
or by setting `BAT_PAGER` to an empty string.
|
||
|
||
### Cygwin
|
||
|
||
`bat` on Windows does not natively support Cygwin's unix-style paths (`/cygdrive/*`). When passed an absolute cygwin path as an argument, `bat` will encounter the following error: `The system cannot find the path specified. (os error 3)`
|
||
|
||
This can be solved by creating a wrapper or adding the following function to your `.bash_profile` file:
|
||
|
||
```bash
|
||
bat() {
|
||
local index
|
||
local args=("$@")
|
||
for index in $(seq 0 ${#args[@]}) ; do
|
||
case "${args[index]}" in
|
||
-*) continue;;
|
||
*) [ -e "${args[index]}" ] && args[index]="$(cygpath --windows "${args[index]}")";;
|
||
esac
|
||
done
|
||
command bat "${args[@]}"
|
||
}
|
||
```
|
||
|
||
## Troubleshooting
|
||
|
||
### Garbled output
|
||
|
||
If an input file contains color codes or other ANSI escape sequences or control characters, `bat` will have problems
|
||
performing syntax highlighting and text wrapping, and thus the output can become garbled.
|
||
When displaying such files it is recommended to disable both syntax highlighting and wrapping by
|
||
passing the `--color=never --wrap=never` options to `bat`.
|
||
|
||
### Terminals & colors
|
||
|
||
`bat` handles terminals *with* and *without* truecolor support. However, the colors in most syntax
|
||
highlighting themes are not optimized for 8-bit colors. It is therefore strongly recommended
|
||
that you use a terminal with 24-bit truecolor support (`terminator`, `konsole`, `iTerm2`, ...),
|
||
or use one of the basic [8-bit themes](#8-bit-themes) designed for a restricted set of colors.
|
||
See [this article](https://gist.github.com/XVilka/8346728) for more details and a full list of
|
||
terminals with truecolor support.
|
||
|
||
Make sure that your truecolor terminal sets the `COLORTERM` variable to either `truecolor` or
|
||
`24bit`. Otherwise, `bat` will not be able to determine whether or not 24-bit escape sequences
|
||
are supported (and fall back to 8-bit colors).
|
||
|
||
### Line numbers and grid are hardly visible
|
||
|
||
Please try a different theme (see `bat --list-themes` for a list). The `OneHalfDark` and
|
||
`OneHalfLight` themes provide grid and line colors that are brighter.
|
||
|
||
### File encodings
|
||
|
||
`bat` natively supports UTF-8 as well as UTF-16. For every other file encoding, you may need to
|
||
convert to UTF-8 first because the encodings can typically not be auto-detected. You can `iconv`
|
||
to do so.
|
||
Example: if you have a PHP file in Latin-1 (ISO-8859-1) encoding, you can call:
|
||
``` bash
|
||
iconv -f ISO-8859-1 -t UTF-8 my-file.php | bat
|
||
```
|
||
Note: you might have to use the `-l`/`--language` option if the syntax can not be auto-detected
|
||
by `bat`.
|
||
|
||
## Development
|
||
|
||
```bash
|
||
# Recursive clone to retrieve all submodules
|
||
git clone --recursive https://github.com/sharkdp/bat
|
||
|
||
# Build (debug version)
|
||
cd bat
|
||
cargo build --bins
|
||
|
||
# Run unit tests and integration tests
|
||
cargo test
|
||
|
||
# Install (release version)
|
||
cargo install --path . --locked
|
||
|
||
# Build a bat binary with modified syntaxes and themes
|
||
bash assets/create.sh
|
||
cargo install --path . --locked --force
|
||
```
|
||
|
||
If you want to build an application that uses `bat`s pretty-printing
|
||
features as a library, check out the [the API documentation](https://docs.rs/bat/).
|
||
Note that you have to use either `regex-onig` or `regex-fancy` as a feature
|
||
when you depend on `bat` as a library.
|
||
|
||
## Contributing
|
||
|
||
Take a look at the [`CONTRIBUTING.md`](CONTRIBUTING.md) guide.
|
||
|
||
## Maintainers
|
||
|
||
- [sharkdp](https://github.com/sharkdp)
|
||
- [eth-p](https://github.com/eth-p)
|
||
- [keith-hall](https://github.com/keith-hall)
|
||
- [Enselic](https://github.com/Enselic)
|
||
|
||
## Security vulnerabilities
|
||
|
||
Please contact [David Peter](https://david-peter.de/) via email if you want to report a vulnerability in `bat`.
|
||
|
||
## Project goals and alternatives
|
||
|
||
`bat` tries to achieve the following goals:
|
||
|
||
- Provide beautiful, advanced syntax highlighting
|
||
- Integrate with Git to show file modifications
|
||
- Be a drop-in replacement for (POSIX) `cat`
|
||
- Offer a user-friendly command-line interface
|
||
|
||
There are a lot of alternatives, if you are looking for similar programs. See
|
||
[this document](doc/alternatives.md) for a comparison.
|
||
|
||
## License
|
||
Copyright (c) 2018-2023 [bat-developers](https://github.com/sharkdp/bat).
|
||
|
||
`bat` is made available under the terms of either the MIT License or the Apache License 2.0, at your option.
|
||
|
||
See the [LICENSE-APACHE](LICENSE-APACHE) and [LICENSE-MIT](LICENSE-MIT) files for license details.
|