While working on a project using git repository, if you want to create and switch to a new branch, then use:
git checkout -b [my-branch-name]
To simply checkout a branch, use:
git checkout [my-branch-name]
If you want to rename a branch when pointed to any other branch, you can type the following command:
git branch -m [old-branch-name] [new-branch-name]
To rename the current branch, use:
git branch -m [new-branch-name]
Also to push a branch after adding files and a commit, then type
git push origin [branch-name] in your command line.
In your current branch, if you want to know who updated the file last, then you can use:
git blame [filepath].
To know who updated the line of a file last, use:
git blame -L[LINE-NUMBER],+1 [filepath], for example,
git blame -L21,+1 myfile.php.
For deleting your current branch, first checkout to another branch and type the command,
git branch -d [branch].
The above command deletes the branch locally, so for deleting the branch remotely you have to use,
git push origin --delete [branch-name].
For deleting a file from current branch, you have to use:
git rm [filepath].
For listing all branches that are local and remotely connected, use the command,
git branch -al.
Hope this helps.