Frequently used shell commands

README.md

git

# Get the current commit hash of HEAD (the latest commit on the current branch)
git rev-parse @

# Get the current branch name (using "@" as shorthand for "HEAD" or the current branch)
git rev-parse --abbrev-ref @

# Commit with the current branch name as the commit message (useful for quick commits labeled by branch name)
git commit -m "$(git rev-parse --abbrev-ref @)"

# Commit with the branch name as the message, even if there are no changes (useful for placeholder commits)
git commit -m "$(git rev-parse --abbrev-ref @)" --allow-empty

# Push the current branch to the origin remote repository
git push origin "$(git rev-parse --abbrev-ref @)"

# Pull the origin remote repository of the current branch
git pull origin "$(git rev-parse --abbrev-ref @)"

# Get the root directory name of the git repository (useful for directory-specific tasks)
git rev-parse --show-toplevel | xargs basename

# Delete all branches except the current one (useful for cleaning up local branches)
git branch | grep -v ^\* | xargs -I @ git branch -D @

# Switch to a branch selected with fzf (interactive fuzzy finder), allowing quick branch switching
git switch "$(git branch | fzf -1 | xargs)"

# Compare two files or directories word-by-word, without Git tracking (useful for quick diffs)
git diff --word-diff --no-index

# Show a word-by-word diff with additional output formatting (easier to parse in scripts or review)
git diff --word-diff=porcelain