Add Cat Files With Color Using Bat as a unix til

unix/cat-files-with-color-using-bat.md

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+# Cat Files With Color Using Bat
+
+The time-tested utility `cat` is probably one of the most used unix
+commands. It prints the contents of the file to stdout. You can use it to
+get a quick view of a file.
+
+![example of cat](https://i.imgur.com/kb1UjPW.png)
+
+We live in a world of color and our terminal emulators are capable of so
+much more. There is an alternative to `cat`, called `bat`, that provides
+syntax highlighting based on the type of file.
+
+![example of bat](https://i.imgur.com/ieL7v2Q.png)
+
+This is an open-source utility written in Rust. You can check it out on
+[github](https://github.com/sharkdp/bat).