Day 12 - Git Cheetsheet🛠️📚

Hey DevOps Enthusiasts! 👋 Today marks the completion of our Linux & Git-GitHub hands-on journey. 🚀 I hope you've found it as exciting and enlightening as I have! 🙌

Cheatsheet: Mastering Git Commands 🚀

Git Essentials: Your Quick Reference Guide 📖🔗

Installation & GUIs:

GitHub provides user-friendly installers for Git, ensuring you stay updated.
- GitHub for Windows: Download Here
- GitHub for Mac: Download Here
- Git for All Platforms: Official Git Website

Setup:

Configure global user information for all local repositories:

  git config --global user.name "[firstname lastname]"
  git config --global user.email "[valid-email]"
  git config --global color.ui auto

Setup & Init:

Initialize an existing directory as a Git repository:
```
  git init
```
Clone a repository from a hosted location via URL:
```
  git clone [url]
```

Stage & Snapshot:

View modified files in the working directory, staged for the next commit:
```
  git status
```
Add a file to the staging area:
```
  git add [file]
```

Commit your staged content:

  git commit -m "[descriptive message]"

Branch & Merge:

List branches with an indicator for the active branch:
```
  git branch
```
Create a new branch:
```
  git branch [branch-name]
```
Switch to another branch:
```
  git checkout [branch]
```
Merge the specified branch's history into the current one:
```
  git merge [branch]
```

Inspect & Compare:

Show the commit history for the active branch:
```
  git log
```
Show commits on branchA that are not on branchB:
```
  git log branchB..branchA
```
Show the diff of what is in branchA that is not in branchB:
```
  git diff branchB...branchA
```

Tracking Path Changes:

Delete a file from the project and stage the removal for commit:
```
  git rm [file]
```
Change an existing file path and stage the move:
```
  git mv [existing-path] [new-path]
```

Ignoring Patterns:

Configure system-wide ignore patterns for all local repositories:
```
  git config --global core.excludesfile [file]
```
Create a .gitignore file with desired patterns.

Add a Git URL as an alias:
```
  git remote add [alias] [url]
```
Fetch branches from a remote:
```
  git fetch [alias]
```
Merge a remote branch into the current one:
```
  git merge [alias]/[branch]
```
Transmit local branch commits to the remote repository branch:
```
  git push [alias] [branch]
```
Fetch and merge any commits from the tracking remote branch:
```
  git pull
```

Rewrite History:

Apply commits of the current branch ahead of a specified one:
```
  git rebase [branch]
```
Clear staging area, rewrite working tree from a specified commit:
```
  git reset --hard [commit]
```

Temporary Commits:

Save modified and staged changes:
```
  git stash
```
List stashed file changes:
```
  git stash list
```
Apply changes from the top of the stash stack:
```
  git stash pop
```
Discard changes from the top of the stash stack:
```
  git stash drop
```

Let's celebrate our achievements, share our knowledge, and continue this incredible DevOps journey! 🙌💻