Merge pull request #5 from futureworkz/git-see-all-changes

TIL Git: See all changes to a file

Author: jamesfwz

git/see-all-changes-to-a-file.md

@@ -0,0 +1,21 @@
+# See all changes to a file
+
+Given a file eg `app/models/user.rb`, you can easily see all the commits made in this file:
+
+```shell
+$ git log app/models/user.rb
+```
+
+If you want to who wrote which line of code in the current file, you can:
+
+```shell
+$ git blame app/models/user.rb
+```
+
+If you want to see all the lines that are written in the file (including deleted and modified lines), you can:
+
+```shell
+$ git log -L ,:app/models/user.rb
+```
+
+Now you can really find out who write what code when. :)