Runs traceroute against a list of IP's and saves the results to traceroute_results.txt

traceroute_sscript.sh

#!/bin/bash

# Output file for traceroute results
output_file="traceroute_results.txt"

# Function to run traceroute and save results
run_traceroute() {
    local ip="$1"
    local output=$(traceroute -n "$ip")
    echo -e "\n-------------------------------------"
    echo "  Traceroute for $ip:"
    echo -e "-------------------------------------\n"
    echo "$output"
    echo -e "\n-------------------------------------" >> "$output_file"
    echo "  Traceroute for $ip:  " >> "$output_file"
    echo -e "-------------------------------------\n" >> "$output_file"
    echo "$output" >> "$output_file"
}

# Clear existing content in the output file
> "$output_file"

# Check if IP is valid
is_valid_ip() {
    local ip="$1"
    local valid_ip_pattern="^([0-9]{1,3}\.){3}[0-9]{1,3}$"

    if [[ $ip =~ $valid_ip_pattern ]]; then
        IFS='.' read -ra octets <<< "$ip"
        for octet in "${octets[@]}"; do
            if ((octet < 0 || octet > 255)); then
                return 1
            fi
        done
        return 0
    else
        return 1
    fi
}

# Display help documentation
display_help() {
    echo
    echo "Usage: $0 [IP_ADDRESS [IP_ADDRESS ...] | -f FILE]"
    echo "Run traceroute against a list of valid IP addresses."
    echo "Options:"
    echo "  IP_ADDRESS        Provide individual IP addresses as arguments"
    echo "  -f FILE           Provide a file containing IP addresses (one per line)"
    echo "  -h, --help        Display this help message"
}

# Handle command line arguments
while [[ $# -gt 0 ]]; do
    case "$1" in
        -h|--help)
            display_help
            exit 0
            ;;
        -f)
            shift
            if [[ -f "$1" ]]; then
                while IFS= read -r line; do
                    if is_valid_ip "$line"; then
                        run_traceroute "$line"
                    else
                        echo "$line is not a valid IP address."
                    fi
                done < "$1"
            else
                echo "Error: File $1 not found."
            fi
            shift
            ;;
        *)
            if is_valid_ip "$1"; then
                run_traceroute "$1"
            else
                echo "$1 is not a valid IP address."
            fi
            shift
            ;;
    esac
done

echo -e "\n-------------------------------------\n"
echo "Traceroute completed. Results saved in $output_file."