Search notes:

git diff

git diff show changes between
Show differences between two commits: 
git diff 2a532db 5949ddb
Use --cached to compare staging area with repository. --staged is a synonym for --cached. Without --cached (or --staged), git diff compares working tree to repository: 
git diff --cached
Show the difference between the last and second last commited version of a given file: 
git diff HEAD~1 HEAD path/to/file.txt
Same thing, but more explicit 
git diff HEAD~1 HEAD~0 path/to/file.txt
The following command shows the differences of a given file between its current local HEAD and the modified (uncommitted) changes to this file: 
git diff HEAD path/to/file.txt
The diff between the original repository and the local HEAD(?): 
git diff  master  origin/master

See also

git difftool
git commands
The shell command diff.

Index

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