Add Show A File Preview When Searching With FZF as a unix til

Author: jbranchaud

README.md

@@ -10,7 +10,7 @@ smart people at [Hashrocket](http://hashrocket.com/).
 For a steady stream of TILs from a variety of rocketeers, checkout
 [til.hashrocket.com](https://til.hashrocket.com/).
 
-_799 TILs and counting..._
+_800 TILs and counting..._
 
 ---
 
@@ -747,6 +747,7 @@ _799 TILs and counting..._
 - [Search History](unix/search-history.md)
 - [Search Man Page Descriptions](unix/search-man-page-descriptions.md)
 - [Securely Remove Files](unix/securely-remove-files.md)
+- [Show A File Preview When Searching With FZF](unix/show-a-file-preview-when-searching-with-fzf.md)
 - [Show Disk Usage For The Current Directory](unix/show-disk-usage-for-the-current-directory.md)
 - [Show The Size Of Everything In A Directory](unix/show-the-size-of-everything-in-a-directory.md)
 - [SSH Escape Sequences](unix/ssh-escape-sequences.md)

unix/show-a-file-preview-when-searching-with-fzf.md

@@ -0,0 +1,33 @@
+# Show A File Preview When Searching With FZF
+
+[FZF](https://github.com/junegunn/fzf) by itself is a great way to fuzzy
+find files. It gets even better when you can view a preview of a file before
+opening it up. The `--preview` flag lets you do just this.
+
+Add a basic file preview with `cat`:
+
+```bash
+$ fzf --preview 'cat {}'
+```
+
+The `{}` will get replaced a single-quoted string of the highlighted file.
+
+You can spice up the preview a bit with color and line numbers using
+[`bat`](https://github.com/sharkdp/bat):
+
+```bash
+$ fzf --preview 'bat --color "always" {}'
+```
+
+The `--color` flag tells `bat` to produce syntax highlighted output even
+though it isn't in interactive mode.
+
+Lastly, you can keep it performant by only showing the first 100 lines:
+
+```bash
+$ fzf --preview 'bat --color "always" --line-range 0:100 {}'
+```
+
+See `man fzf` for more details.
+
+[source](https://github.com/dkarter/dotfiles/blob/master/vimrc#L362)