bashScan.sh - Red Team NMAP Port Scan

This Bash script facilitates a simple yet effective port scanning using NMAP. The user is prompted to enter the target IP address or hostname, choose an output format (text, CSV, or XML), and provide a name for the output file. The script then performs a port scan and saves the results in the specified format.

Usage

1. Make sure you have NMAP installed on your system.

2. Download the script:

wget https://example.com/path/to/bashScan.sh

3. Provide execute permissions:

chmod +x bashScan.sh

4. Run the script:

./bashScan.sh

Script Walkthrough

1. Target Input

The script starts by prompting the user to enter the target IP address or hostname for the port scan.

echo "Enter the target IP address or hostname to scan"
read target

2. Output Format Selection

The user is then given the option to choose the output format:

• Text file
• CSV file
• XML file

echo "Select format for output:"
echo "1. Text file"
echo "2. CSV file"
echo "3. XML file"
read -p "Enter the number for your selection: " format

3. Output File Name Input

Next, the user is prompted to enter a name for the output file (without extension).

echo "Enter the name for the output file (without extension):"
read filename

4. File Extension Check

The script checks the user's format selection and sets the corresponding file extension.

if [ $format -eq 1 ]; then
  extension=".txt"
elif [ $format -eq 2 ]; then
  extension=".csv"
elif [ $format -eq 3 ]; then
  extension=".xml"
else
  echo "Invalid selection"
  exit 1
fi

5. NMAP Port Scan

Using the NMAP tool, the script performs a port scan and saves the output to the specified file.

nmap -oN "$filename$extension" $target

6. Display Output

The script opens a new terminal session to display the contents of the output file.

xterm -e "cat $filename$extension"

Note

• The command to open a new terminal and execute a command (xterm -e "command") may not work on all systems. You may need to use a different command, such as gnome-terminal -e "command", depending on your system and the terminal emulator you are using.

• Ensure you have the necessary permissions to run the script and execute NMAP.