☁️ EC2 Quick Connect Script: arif-ec2

This is a convenient Bash script that allows you to quickly and securely connect to your EC2 instance without typing out the full SSH command each time.

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🧰 What It Does

• ✅ Uses a pre-defined .pem file for authentication
• ✅ Connects to a specific EC2 instance using a custom command: arif-ec2
• ✅ Verifies that the .pem file exists before attempting connection
• ✅ Prevents common mistakes by checking variables and permissions

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📂 Script Location

Place the script in your ~/bin folder so it’s globally accessible as a terminal command:

mkdir -p ~/bin

Then create the file:

nano ~/bin/arif-ec2

Paste the following:

#!/bin/bash
PEM_FILE="$HOME/Documents/ec2/devarif/devarif-instance-1.pem"
INSTANCE_USER="ubuntu"
INSTANCE_IP="ec2-15-206-67-164.ap-south-1.compute.amazonaws.com"

# Check if the PEM file exists
if [ ! -f "$PEM_FILE" ]; then
    echo "❌ Error: PEM file not found at $PEM_FILE"
    exit 1
fi

# Check if the instance user and IP are set
if [ -z "$INSTANCE_USER" ] || [ -z "$INSTANCE_IP" ]; then
    echo "❌ Error: Instance user or IP not set"
    exit 1
fi

# Connect to the EC2 instance
echo "🔌 Connecting to EC2 instance at $INSTANCE_IP..."
ssh -i "$PEM_FILE" "$INSTANCE_USER@$INSTANCE_IP" || { echo "❌ Connection failed"; exit 1; }

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✅ Make It Executable (every time you update)

After creating or updating the script, make it executable:

chmod +x ~/bin/arif-ec2

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🛠 Add to PATH (if not already)

Ensure ~/bin is in your shell’s PATH:

echo 'export PATH="$HOME/bin:$PATH"' >> ~/.zshrc
source ~/.zshrc

Use .bashrc instead if you’re using Bash.

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🔐 Fix Permissions (Important)

Ensure the .pem file has correct permissions:

chmod 400 ~/Documents/ec2/devarif/devarif-instance-1.pem

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🚀 Usage

Now you can connect to your EC2 instance with a simple command:

arif-ec2

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📋 Output Example

🔌 Connecting to EC2 instance at ec2-15-206-67-164.ap-south-1.compute.amazonaws.com...
Welcome to Ubuntu 22.04 LTS
Last login: ...

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📧 Contact

• 🌐 devarif.me
• 💼 LinkedIn
• 💻 GitHub