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More shortcuts #151

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12 changes: 12 additions & 0 deletions a.core_concepts.md
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Original file line number Diff line number Diff line change
Expand Up @@ -18,6 +18,7 @@ kubernetes.io > Documentation > Tasks > Access Applications in a Cluster > [Use

```bash
kubectl create namespace mynamespace
kubectl create ns mynamespace
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since it's the same command as the one in the previous line, can you add it with an explanatory comment?

kubectl run nginx --image=nginx --restart=Never -n mynamespace
```

Expand All @@ -35,6 +36,11 @@ Easily generate YAML with:
kubectl run nginx --image=nginx --restart=Never --dry-run=client -n mynamespace -o yaml > pod.yaml
```

Above version 1.19, no need of --restart=Never. Use the following:
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Maybe you mean, "version 1.19 and later"?

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Can you also explain why --restart=Never is not needed?

```bash
kubectl run nginx --image=nginx --dry-run=client -n mynamespace -o yaml > pod.yaml
```

```bash
cat pod.yaml
```
Expand All @@ -60,6 +66,7 @@ status: {}

```bash
kubectl create -f pod.yaml -n mynamespace
kubectl apply if pod.yaml -n mynamespace
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Do you mean apply -f?

```

Alternatively, you can run in one line
Expand All @@ -68,6 +75,11 @@ Alternatively, you can run in one line
kubectl run nginx --image=nginx --restart=Never --dry-run=client -o yaml | kubectl create -n mynamespace -f -
```

Above version 1.19, remove --restart=Never
```bash
kubectl run nginx --image=nginx --dry-run=client -o yaml | kubectl create -n mynamespace -f -
```

</p>
</details>

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