> For the complete documentation index, see [llms.txt](https://agstakingco.gitbook.io/eth-updates-april-12-2023/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://agstakingco.gitbook.io/eth-updates-april-12-2023/bash-script.md).

# Bash Script

You can create a basic Bash script to update Geth / Lighthouse

This script is for `geth v1.11.15` and `lighthouse v4.0.1`

**1) Open a new document in "Text Editor"**

{% hint style="info" %}
You can launch the apps/search window in the bottom left: <img src="/files/kOykmDWRCfON5mWRrV2L" alt="" data-size="line">\
Search "text editor" and open the app.
{% endhint %}

<figure><img src="/files/e0n6LesU0FR4yVQDZg5a" alt=""><figcaption></figcaption></figure>

**2) Paste the following text into the document:**

```
#!/bin/bash

# Update Geth
# Step 1: Stop Geth
sudo systemctl stop geth

# Step 2: Change to Home directory
cd ~

# Step 3: Use curl to download latest version
curl -LO https://gethstore.blob.core.windows.net/builds/geth-linux-amd64-1.11.5-a38f4108.tar.gz

# Step 4: Extract, Copy, and Clean up
tar xvf geth-linux-amd64-1.11.5-a38f4108.tar.gz
cd geth-linux-amd64-1.11.5-a38f4108 && sudo cp geth /usr/local/bin
cd ..
rm geth-linux-amd64-1.11.5-a38f4108.tar.gz
rm -r geth-linux-amd64-1.11.5-a38f4108

# Step 5: Start Geth
sudo systemctl start geth

# Update Lighthouse
# Step 1: Change directory to Home folder
cd ~

# Step 2: Download Lighthouse software
curl -LO https://github.com/sigp/lighthouse/releases/download/v4.0.1/lighthouse-v4.0.1-x86_64-unknown-linux-gnu.tar.gz

# Step 3: Stop Lighthouse services
sudo systemctl stop lighthousevalidator
sudo systemctl stop lighthousebeacon

# Step 4: Extract, Copy, and Clean up
tar xvf lighthouse-v4.0.1-x86_64-unknown-linux-gnu.tar.gz
sudo cp lighthouse /usr/local/bin
rm lighthouse-v4.0.1-x86_64-unknown-linux-gnu.tar.gz
rm lighthouse

# Step 5: Start Lighthouse services
sudo systemctl start lighthousebeacon
sudo systemctl start lighthousevalidator

# Print the version of Lighthouse
lighthouse_version=$(lighthouse --version)
echo "LIGHTHOUSE VERSION: "
echo "$lighthouse_version"

# Print the version of Geth
geth_version=$(geth --version)
echo "GETH VERSION: "
echo "$geth_version"

```

**3) Save the file (`ctrl+s`) in your Documents folder as `update.sh`**

{% hint style="info" %}
Be sure to save the file in your Documents folder
{% endhint %}

**4) Open a new terminal with (`ctrl+shift+t)`**

**5) Change to Documents directory:**

```
cd ~/Documents
```

**6) Make the script executable:**

```
chmod +x update.sh
```

**7) Run the update script:**

```
./update.sh
```

You should see the updated versions printed in the terminal:

<figure><img src="/files/ajgRIRHHSWTkHDNqua0B" alt=""><figcaption></figcaption></figure>

{% hint style="success" %}
That's it, Geth and Lighthouse are now ready for the Shanghai fork on April 12, 2023
{% endhint %}


---

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