Add Dropping Commits With Git Rebase as a git 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/).
 
-_687 TILs and counting..._
+_688 TILs and counting..._
 
 ---
 
@@ -167,6 +167,7 @@ _687 TILs and counting..._
 - [Delete All Untracked Files](git/delete-all-untracked-files.md)
 - [Determine The Hash Id For A Blob](git/determine-the-hash-id-for-a-blob.md)
 - [Diffing With Patience](git/diffing-with-patience.md)
+- [Dropping Commits With Git Rebase](git/dropping-commits-with-git-rebase.md)
 - [Dry Runs in Git](git/dry-runs-in-git.md)
 - [Excluding Files Locally](git/excluding-files-locally.md)
 - [Find The Initial Commit](git/find-the-initial-commit.md)

git/dropping-commits-with-git-rebase.md

@@ -0,0 +1,32 @@
+# Dropping Commits With Git Rebase
+
+I've been warned enough times about the potential dangers of `git reset
+--hard ...` that I always second guess myself as I type it out. Is it `git
+reset --hard HEAD` or `git reset --hard HEAD~`?
+
+If the working directory and index are clean, then there is another way to
+remove commits. A way that gives me more confidence about what exactly is
+being removed.
+
+Doing an interactive rebase gives you a number of options. One of those
+options is `d` (which stands for `drop`).
+
+```
+$ git rebase -i master
+```
+
+This pulls up an interactive rebase with all commits going back to what is
+on master -- great for when working from a feature branch.
+
+```
+pick 71ed173 Add Create A Stream From An Array as a reasonml til
+pick 80ac8d3 Add some clarity by distinguishing var names
+d 4f06c32 Add Data Structures With Self-Referential Types as a reasonml til
+d 01a0e75 Fix the name of this file
+```
+
+Adding `d` next to the commits you want to get rid of and saving will drop
+those commits. The great part is that there is zero ambiguity about which
+ones are being dropped.
+
+h/t Jake Worth