Command of Git

Published at: 6/26/2025, 6:22:50 AM
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Installation

https://git-scm.com/

Usage

git init -b main
git remote add origin remote-repo-url
git status # checkout which file was changed.
git diff hello.rs # see the difference of the two versions.
git add .
git commit -m "Fix: fix something wrong."
git push origin main
git push -u origin main
git pull

Git log

git log
git log --oneline
git log --graph

Username and email

git config user.name
git config user.password
git config user.email

Configure username and email password

git config --global user.name "desonglll" && git config --global user.password "password" && git config --global user.email "lindesong666@163.com"

Generate SSH key

ssh-keygen -t rsa -C "lindesong666@163.com"
ssh -T git@github.com

ALL IN ONE COMMAND

git config --global user.name "desonglll" && git config --global user.password "password" && git config --global user.email "lindesong666@163.com" && ssh-keygen -t ed25519 -C "lindesong666@163.com" && cat ~/.ssh/id_ed25519.pub

Enabling SSH connections over HTTPS can solve this problem

If you are able to SSH intogit@ssh.github.comover port 443, you can override your SSH settings to force any connection to GitHub.com to run through that server and port.

To set this in your SSH configuration file, edit the file at ~/.ssh/config, and add this section:

Host github.com
    Hostname ssh.github.com
    Port 443
    User git

Setting default branch name

git config --global init.defaultBranch main

Remote URL

git remote -v
git remote get-url origin
git remote set-url origin [url]
git remote rm origin
git remote add origin [url]

Merge remote branch to local branch

git merge origin

Switch branch

git branch
git branch -a
git branch -v
git checkout -b new-branch
git checkout -
git switch -c new-branch
git branch -M main

Check the difference of file

git diff

Delete local branch

# 不加-D表示创建新local分支xxx，加-D表示强制删除local分支xxx
# For branch that not merged to main branch.
git branch -D xxx
 
# For branch that already merged to main branch.
git branch -d xxx

Git ignore file

macOS

# macOS system files
.DS_Store
.AppleDouble
.LSOverride
 
# Icon must end with two \\r
Icon
 
# Thumbnails
._*
 
# Files that might appear on external disk
.Spotlight-V100
.Trashes
 
# Directories potentially created on remote AFP share
.AppleDB
.AppleDesktop
Network Trash Folder
Temporary Items
.apdisk