Git global setup

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git config --global user.name "Your Name"
git config --global user.email "your.name@example.com"

Create a new repository on the command line

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echo "# template" >> README.md
git init
git add README.md
git commit -m "first commit"
git branch -M main
git remote add origin git@github.com:Chasing66/template.git
git push -u origin main

Push an existing repository from the command line

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git remote add origin git@github.com:Chasing66/template.git
git branch -M main
git push -u origin main

gitconfig

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[include]
        path = /etc/git-setup/gitconfig
[core]
        editor = vim
[user]
        name = Your Name
        email = your.name@example.com
[merge]
        tool = vimdiff
[alias]
        co = checkout
        ci = commit
        st = status
        br = branch
        hist = log --graph --format=format:\"%C(red)%h%C(reset) %C(yellow)%cd%C(reset) | %s %C(green)\\[%an\\]%C(reset)%C(bold blue)%d%C(reset)\" --abbrev-commit --date=short
        root = rev-parse --show-toplevel
        alias = !git config --list | grep ^alias
        head = rev-list -n1 --abbrev-commit HEAD
        l = log --stat --color --graph --pretty=format:'%C(bold red)%h%C(reset) - %C(bold green)(%cr)%C(bold blue)<%an>%C(reset) -%C(bold yellow)%d%C(reset) %s' --abbrev-commit
[init]
        defaultBranch = main
[filter "lfs"]
        clean = git-lfs clean -- %f
        smudge = git-lfs smudge -- %f
        process = git-lfs filter-process
        required = true

Syncing a fork branch from the command line

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git remote -v
git remote add `origin-repo-alias` `origin-repo-address`

git fetch `origin-repo-alias` `origin-repo-branch-name`

git merge `origin-repo-alias/origin-repo-branch-name`

# For example
git fetch upstream
git merge upstream/main
git push

Push from local branch to remote main

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fatal: The upstream branch of your current branch does not match
the name of your current branch.  To push to the upstream branch
on the remote, use

    git push origin HEAD:main

To push to the branch of the same name on the remote, use

    git push origin HEAD