Add Enable Multi-Select Of Results With fzf as a unix til

README.md

@@ -10,7 +10,7 @@ pairing with smart people at Hashrocket.
 
 For a steady stream of TILs, [sign up for my newsletter](https://tinyletter.com/jbranchaud).
 
-_1075 TILs and counting..._
+_1076 TILs and counting..._
 
 ---
 
@@ -1007,6 +1007,7 @@ _1075 TILs and counting..._
 - [Display Free Disk Space](unix/display-free-disk-space.md)
 - [Display The Contents Of A Directory As A Tree](unix/display-the-contents-of-a-directory-as-a-tree.md)
 - [Do Not Overwrite Existing Files](unix/do-not-overwrite-existing-files.md)
+- [Enable Multi-Select Of Results With fzf](unix/enable-multi-select-of-results-with-fzf.md)
 - [Exclude A Directory With Find](unix/exclude-a-directory-with-find.md)
 - [Figure Out The Week Of The Year From The Terminal](unix/figure-out-the-week-of-the-year-from-the-terminal.md)
 - [File Type Info With File](unix/file-type-info-with-file.md)

unix/enable-multi-select-of-results-with-fzf.md

@@ -0,0 +1,25 @@
+# Enable Multi-Select Of Results With fzf
+
+You can pipe the output of any command to
+[`fzf`](https://github.com/junegunn/fzf) and it will display it line-by-line in
+a list that you can then fuzzy-find against.
+
+By default you get to pick _one_ of those results. That result will go to
+stdout, either printing to the terminal or being piped to the next command.
+
+For some combinations of commands, it makes more sense to be able to select
+_multiple_ results. `fzf` supports this with the `-m` (or `--multi`) flag.
+
+```bash
+$ ls | fzf -m | xargs cat
+```
+
+For instance, this series of commands pipes the output of `ls` (files and
+directoris) to `fzf`. The `-m` flag means that you can hit `Tab` (or
+`Shift+Tab`) to select multile entries. When you hit enter, each of the
+selected entries will be executed one by one with `cat`.
+
+I show a slightly more practical example of this in [Make One-Line Commands
+Interactive with fzf](https://www.youtube.com/watch?v=wf5eXdwfVws).
+
+See `man fzf` for more details.