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# bat
[](https://travis-ci.org/sharkdp/bat)
[](https://crates.io/crates/bat)
A *cat(1)* clone with syntax highlighting and Git integration.
## Features
### Syntax highlighting
`bat` supports syntax highlighting for a large number of programming and markup
languages:
### Git integration
`bat` communicates with `git` to show modifications with respect to the index
(see left side bar):
### Automatic paging
`bat` can pipe its own output to `less` if the output is too large for one screen.
### File concatenation
Oh.. you can also use it to concatenate files :wink:. Whenever
`bat` detects a non-interactive terminal, it will fall back to printing
the plain file contents.
## Usage
Display a single file on the terminal
``` bash
> bat README.md
```
Display multiple files at once
``` bash
> bat src/*.rs
```
Explicitly specify the language
``` bash
> yaml2json .travis.yml | json_pp | bat -l json
```
``` bash
> curl -s https://raw.githubusercontent.com/sharkdp/bat/master/src/main.rs | bat -l rs
```
## Installation
### From binaries
Check out the [Release page](https://github.com/sharkdp/bat/releases) for
binary builds and Debian packages.
#### On Arch Linux
You can install [the AUR package](https://aur.archlinux.org/packages/bat/)
via yaourt, or manually:
```bash
git clone https://aur.archlinux.org/bat.git
cd bat
makepkg -si
```
#### On FreeBSD
You can install a precompiled [`bat` package](https://www.freshports.org/textproc/bat) with pkg:
```sh
pkg install bat
```
or build it on your own from the FreeBSD ports:
```sh
cd /usr/ports/textproc/bat
make install
```
#### On macOS
You can install `bat` with [Homebrew](http://braumeister.org/formula/bat):
``` bash
brew install bat
```
### From source
If you want to build to compile `bat` from source, you need Rust 1.24 or
higher. You can then use `cargo` to build everything:
``` bash
cargo install bat
```
On macOS, you might have to install `cmake` (`brew install cmake`) in order for
some dependencies to be built.
## Customization
`bat` uses the excellent [`syntect`](https://github.com/trishume/syntect/)
library for syntax highlighting. `syntect` can read any
[Sublime Text `.sublime-syntax` file](https://www.sublimetext.com/docs/3/syntax.html)
and theme.
To build your own language-set and theme, follow these steps:
Create a folder with a syntax highlighting theme:
``` bash
BAT_CONFIG_DIR="$(bat cache --config-dir)"
mkdir -p "$BAT_CONFIG_DIR/themes"
cd "$BAT_CONFIG_DIR/themes"
# Download a theme, for example:
git clone https://github.com/jonschlinkert/sublime-monokai-extended
# Create a 'Default.tmTheme' link
ln -s "sublime-monokai-extended/Monokai Extended.tmTheme" Default.tmTheme
```
Create a folder with language definition files:
``` bash
mkdir -p "$BAT_CONFIG_DIR/syntaxes"
cd "$BAT_CONFIG_DIR/syntaxes"
# Download some language definition files, for example:
git clone https://github.com/sublimehq/Packages/
rm -rf Packages/Markdown
git clone https://github.com/jonschlinkert/sublime-markdown-extended
```
Finally, use the following command to parse all these files into a binary
cache:
``` bash
bat cache --init
```
If you ever want to go back to the default settings, call:
``` bash
bat cache --clear
```
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