[git] git undo all uncommitted or unsaved changes

I'm trying to undo all changes since my last commit. I tried git reset --hard and git reset --hard HEAD after viewing this post. I responds with head is now at 18c3773... but when I look at my local source all the files are still there. What am I missing?

I'm using source tree.... You can do revert all uncommitted changes with 2 easy steps:

1) just need to reset the workspace file status

2) select all unstage files (command +a), right click and select remove

It's that simple :D

Another option to undo changes that weren't staged for commit is to run:

git restore <file>

To discard changes in the working directory.

git restore [filename_path]

For example I need to discard my last changes in index.html file:

git restore /usr/myPC/folder/index.html

What I do is

git add . (adding everything)
git stash 
git stash drop

One liner: git add . && git stash && git stash drop

States transitioning from one commit to new commit

0. last commit,i.e. HEAD commit
1. Working tree changes, file/directory deletion,adding,modification.
2. The changes are staged in index
3. Staged changes are committed

Action for state transitioning

0->1: manual file/directory operation
1->2: git add .
2->3: git commit -m "xxx"

Check diff

0->1: git diff
0->2: git diff --cached
0->1, and 0->2: git diff HEAD
last last commit->last commit: git diff HEAD^ HEAD

Revert to last commit

2->1: git reset
1->0: git checkout .     #only for tracked files/directories(actions include modifying/deleting tracked files/directories)
1->0: git clean -fdx     #only for untracked files/directories(action includes adding new files/directories)
2->1, and 1->0: git reset --hard HEAD

Equivalent of git clone, without re-downloading anything

git reset && git checkout . && git clean -fdx

For those who reached here searching if they could undo git clean -f -d , by which a file created in eclipse was deleted,

You can do the same from the UI using "restore from local history" for ref:Restore from local history

If you wish to "undo" all uncommitted changes simply run:

git stash
git stash drop

If you have any untracked files (check by running git status), these may be removed by running:

git clean -fdx

git stash creates a new stash which will become stash@{0}. If you wish to check first you can run git stash list to see a list of your stashes. It will look something like:

stash@{0}: WIP on rails-4: 66c8407 remove forem residuals
stash@{1}: WIP on master: 2b8f269 Map qualifications
stash@{2}: WIP on master: 27a7e54 Use non-dynamic finders
stash@{3}: WIP on blogit: c9bd270 some changes

Each stash is named after the previous commit messsage.

Adding this answer because the previous answers permanently delete your changes

The Safe way

git stash -u

Explanation: Stash local changes including untracked changes (-u flag). The command saves your local modifications away and reverts the working directory to match the HEAD commit.

Want to recover the changes later?

git stash pop

Explanation: The command will reapply the changes to the top of the current working tree state.

Want to permanently remove the changes?

git stash drop

Explanation: The command will permanently remove the stashed entry

Link to git stash documentation

there is also git stash - which "stashes" your local changes and can be reapplied at a later time or dropped if is no longer required

more info on stashing