diff

• Show diferences between files in git repository and working directory

git diff # git repo - WIP
git diff master..HEAD # master - HEAD

• Example

diff --git a/j/javascript.js b/j/javascript.js
index accefce..328daf1 100644
--- a/j/javascript.js
+++ b/j/javascript.js
@@ -1 +1,2 @@
-console.log("Hello World");
+console.log("Henlo World");
+console.log("Another henlo!");

• a is the previous file
• b is the modified file
• index: "a" hash file, "b" hash file (to be created) and file permission
• @@ -1 +1,2 @@:
• -1: number of the line in old file
• +1,2: number of the line in newer file and the length of the block