Add Keep File Locally With git rm as a Git TIL

Author: jbranchaud

README.md

@@ -10,7 +10,7 @@ pairing with smart people at Hashrocket.
 
 For a steady stream of TILs, [sign up for my newsletter](https://crafty-builder-6996.ck.page/e169c61186).
 
-_1345 TILs and counting..._
+_1346 TILs and counting..._
 
 ---
 
@@ -283,6 +283,7 @@ _1345 TILs and counting..._
 - [Include Some Stats In Your Git Log](git/include-some-stats-in-your-git-log.md)
 - [Intent To Add](git/intent-to-add.md)
 - [Interactively Unstage Changes](git/interactively-unstage-changes.md)
+- [Keep File Locally With `git rm`](git/keep-file-locally-with-git-rm.md)
 - [Last Commit A File Appeared In](git/last-commit-a-file-appeared-in.md)
 - [List All Files Changed Between Two Branches](git/list-all-files-changed-between-two-branches.md)
 - [List Branches That Contain A Commit](git/list-branches-that-contain-a-commit.md)

git/keep-file-locally-with-git-rm.md

@@ -0,0 +1,20 @@
+# Keep File Locally With `git rm`
+
+Let's say I've added a new file `data.json` to my repo as part of the most
+recent commit. I realize this isn't the point at which I want to add that file.
+So, I do `git rm data.json` and then `git commit --amend` to rework that
+commit.
+
+However, when I look in my working tree, or even just my file system, I'll
+notice that `data.json` is gone. The `git rm` command completely removed the
+file since it was previously an untracked file.
+
+To keep `git rm` from tossing out my file like that, I can include the
+`--cached` flag which will remove the file from the index (stages it to be
+`deleted`), but restore it to the working directory.
+
+```bash
+$ git rm --cached data.json
+```
+
+See `man git-rm` for more details on the `--cached` flag.