Introduction:

When managing multiple servers, it’s common to transfer files between them. Using a Bash script with scp (secure copy), We can automate this task efficiently.

Prerequisites:

  • Remote user credentials
  • Install the sshpass service.
  • Remote server path.

Step1 :

Bash Script to Copy a File with SSH Port and Password.

Save the script as script_file.sh.

#!/bin/bash

# Prompt for inputs
read -p "Enter the full path of the local file to copy: " SOURCE_FILE
read -p "Enter remote SSH username: " DEST_USER
read -p "Enter remote server IP or hostname: " DEST_HOST
read -p "Enter SSH port number (e.g. 22): " SSH_PORT
read -p "Enter full remote destination path (e.g. /home/user/): " DEST_PATH
read -s -p "Enter SSH password: " SSH_PASS
echo ""

# Run SCP using sshpass with custom port
sshpass -p "$SSH_PASS" scp -P "$SSH_PORT" "$SOURCE_FILE" "$DEST_USER@$DEST_HOST:$DEST_PATH"

# Check the result
if [ $? -eq 0 ]; then
    echo "✅ File copied successfully."
else
    echo "❌ File copy failed!"
fi

Step 2:

Make the file executable

$chmod +x script_file.sh

Step 3:

Run the file with the command below.

$ ./script_file.sh
or
$ sh script_file.sh

Step 4:

Follow the prompts and enter the required details.

Conclusion:

This Bash script provides a quick way to transfer files between servers using scp a custom SSH port and password authentication. While it’s convenient for controlled or temporary environments, always prioritise key-based authentication for production environments to maintain security

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