Other

edit the files without editing the message

git commit --amend --no-edit

example

git init
git add .
git commit -m "initial commit"
git remote add origin https://github.com/s3/aw33.git
git push -u origin master

diff

git diff

affiche le diff qui existe entre differents snapshot. snapshot can be the working tree, the index, or a tree.

we may show information about a commit, including the diff, wit the git show command. It shows information about the last commit by default.

git show

prune .git folder, prevent some safeguards

clean : supprimer aussi les untracked files et folders

git clean -df

supprime les untracked files et directories. En effet, git checkout . ne permet pas de supprimer les fichiers et directories qui sont untracked, ramene a leur ancienne version seulement les fichiers tracked.

log commits, forks and merges

we log the commits of the current branch

git log

we may display the forks and merge commits

git log --graph --oneline

head

Head is which commit the working tree is coming from.

We change the head by checking out a specific commit.

When we check-in a commit that is not tracked by any branch, we say the head is detached, probably meaning detached from any branch.