chore: initial training material setup
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# ✅ Lösung – Aufgabe 03: Branches
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> Schau dir diese Lösung erst an, nachdem du die Aufgabe selbst versucht hast!
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---
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## Schritt-für-Schritt-Lösung
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### 1. Ausgangssituation herstellen
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```bash
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mkdir branch-uebung
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cd branch-uebung
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git init
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echo "# Branch-Übung" > README.md
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git add README.md
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git commit -m "chore: Projekt angelegt"
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```
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### 2. Feature-Branch anlegen
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```bash
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git switch -c feature/begruessung
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```
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```text
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Switched to a new branch 'feature/begruessung'
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```
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### 3. Datei erstellen und committen
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```bash
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echo "Hallo, Welt!" > hallo.txt
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echo "Willkommen in meinem ersten Git-Projekt." >> hallo.txt
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git add hallo.txt
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git commit -m "feat: Begrüßungsdatei hinzugefügt"
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```
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```text
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[feature/begruessung c3d4e56] feat: Begrüßungsdatei hinzugefügt
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1 file changed, 2 insertions(+)
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create mode 100644 hallo.txt
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```
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### 4. Zurück zu main
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```bash
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git switch main
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```
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```text
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Switched to branch 'main'
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```
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Prüfe, ob `hallo.txt` da ist:
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```bash
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ls
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```
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```text
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README.md
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```
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`hallo.txt` fehlt – korrekt! Auf `main` existiert sie noch nicht.
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### 5. Commit-Übersicht beider Branches
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```bash
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git log --all --oneline --graph
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```
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```text
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* c3d4e56 (feature/begruessung) feat: Begrüßungsdatei hinzugefügt
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* a1b2c3d (HEAD -> main) chore: Projekt angelegt
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```
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### 6. Merge
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```bash
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git merge feature/begruessung
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```
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```text
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Updating a1b2c3d..c3d4e56
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Fast-forward
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hallo.txt | 2 ++
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1 file changed, 2 insertions(+)
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create mode 100644 hallo.txt
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```
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`hallo.txt` ist jetzt auf `main` vorhanden.
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### 7. Branch aufräumen
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```bash
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git branch -d feature/begruessung
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```
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```text
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Deleted branch feature/begruessung (was c3d4e56).
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```
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### Abschlusszustand
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```bash
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git log --oneline
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```
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```text
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c3d4e56 (HEAD -> main) feat: Begrüßungsdatei hinzugefügt
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a1b2c3d chore: Projekt angelegt
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```
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```bash
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git branch
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```
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```text
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* main
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```
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---
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*Zurück zur [Aufgabe](../03-branches/aufgabe.md)*
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