Gavin Wiggins

Git Commands

Written on December 7, 2025

Here are some useful commands for configuring and using Git in the terminal.

Email configuration

Commands for configuring the email address globally or for a single repository.

# Set the global email address for commits
git config --global user.email "user@example.com"

# Set the email address for commits in the current repository
git config user.email "user@example.com"

Rewrite Git history

Use the git-filter-repo tool to rewrite the history of a Git repository. This can be used to change the email address associated with commits. The command shown below uses uvx to run git-filter-repo and change the old email to a new email address. The body of the callback represents the body of a Python function. Note the function must return a bytestring instead of a string.

uvx git-filter-repo --force --email-callback '
  return email.replace(b"old@email.com", b"new@email.com")
'

Tags

Commands for working with tags and pushing tags to a remote repository.

# List all the tags in a repository's history
git tag

# Create a lightweight tag for the current commit
git tag v25.12

# Push the tag to the remote origin repository
git push origin v25.12

# Push all tags to the remote origin repository
git push origin --tags