Important Git Operations

git stash allows you to get back to a clean commit point with a synchronized working tree, and avoid losing your local changes in the process of switching branches or tasks.

You’re “stashing” your local work temporarily in order to update a previous commit and later on retrieve your work.

You can use git stash pop to retrieve from your stash.

git log allows you to view the commit history of the branch you currently have checked out.

git log --oneline show the list of commits in one line format. `git log -S “keyword” displays a list of commits that contain the keyword in the message.

git log --oneline --graph displays a visual representation of how the branches and commits were created in order to help you make sense of your repository history.

git commit --amend flag allows you to update a commit. To avoid creating a new one, you could create your changes, stage them with git add and then type the command git commit --amend to update your previous commit.

The terminal editor will ask you to update your commit message.

In Git, the commit you are currently on is known as the HEAD commit.

The output of the git show HEAD command will display everything the git log command displays for the HEAD commit, plus all the file changes that were committed.

In Git, the git reset commit_SHA command can be used to set HEAD to the commit_SHA commit. The commit_SHA argument is the first seven digits of a previous commit’s SHA. In this example, the HEAD was reset to the commit made on Wed Jan 6.

You can use git log to see a record of previous commits and their SHA values.

In Git, the git add filename_1 filename_2 command is used to add multiple files to the staging area at once.

You can use git status to check if you properly added your files to the staging area.

In Git, the git reset HEAD filename command will remove filename from the staging area. Note that this command does not discard file changes from the working directory. You might use this command if you’ve added a file to the staging area, but the file includes incorrect edits.

You can use the git status command to make sure your file was properly removed from the staging area.

In Git, the git checkout HEAD filename command rolls back all changes that have been made to filename since the last commit. In other words, this command will change your working directory to look exactly as it did when you last made a commit.

You can use the git diff command to see if the rollback was successful. If git diff doesn’t output anything, this means your working directory matches your last commit.