eos-vanity.sh

#!/bin/bash

trap "echo 'Terminating all processes...'; pkill -P $$; exit 1" SIGINT SIGTERM

# Check for input argument
if [[ -z "$1" ]]; then
    echo "Search for vanity keys - Usage: ./vanity.sh STRING [NUM_PROCESSES]"
    exit 1
fi

VANITY_STRING=$(echo "$1" | tr '[:upper:]' '[:lower:]')
NUM_PROCESSES=${2:-$(nproc)}
LOG_FILE="vanity_key_generation.log"

echo "Finding keys containing: $VANITY_STRING using $NUM_PROCESSES parallel processes."
echo "Logging progress to $LOG_FILE."

# Function to generate and check keys
generate_and_check() {
    while true; do
        # Generate key pair using cleos
        output=$(cleos create key --to-console 2>> "$LOG_FILE")
        
        # Extract the public key (assuming it's the 5th field)
        pub=$(echo "$output" | grep "Public" | awk '{print $3}' | tr '[:upper:]' '[:lower:]')
        
        # Log the generated public key
        echo "$(date '+%Y-%m-%d %H:%M:%S') - Process $$ generated public key: $pub" >> "$LOG_FILE"
        
        # Check if the public key contains the vanity string
        if [[ $pub == *"$VANITY_STRING"* ]]; then
            {
                echo "-------------------------------"
                echo "Found matching key!"
                echo "$output"
                echo "Process $$ exiting."
            } | tee -a "$LOG_FILE"
            # Terminate all other background processes
            pkill -P $$ 
            exit 0
        fi
    done
}

# Start background processes
for i in $(seq 1 "$NUM_PROCESSES"); do
    generate_and_check &
done

# Wait for all background processes to finish
wait