Cardano pool registration tx build

cardano_reg_pool_tx_build.sh

#!/bin/bash
set -e

cardano-cli shelley query protocol-parameters \
    --mainnet \
    --out-file params.json

currentSlot=$(cardano-cli shelley query tip --mainnet | jq -r '.slotNo')
cardano-cli shelley query utxo --address $(cat payment.addr) --mainnet > fullUtxo.out
tail -n +3 fullUtxo.out | sort -k3 -nr > balance.out
cat balance.out
tx_in=""
total_balance=0
while read -r utxo; do
    in_addr=$(awk '{ print $1 }' <<< "${utxo}")
    idx=$(awk '{ print $2 }' <<< "${utxo}")
    utxo_balance=$(awk '{ print $3 }' <<< "${utxo}")
    total_balance=$((${total_balance}+${utxo_balance}))
    echo TxHash: ${in_addr}#${idx}
    echo ADA: ${utxo_balance}
    tx_in="${tx_in} --tx-in ${in_addr}#${idx}"
    echo tx_in:${tx_in}
done < balance.out
txcnt=$(cat balance.out | wc -l)
echo Total ADA balance: ${total_balance}
echo Number of UTXOs: ${txcnt}

poolDeposit=$(cat params.json | jq -r '.poolDeposit')
echo poolDeposit: $poolDeposit

cardano-cli shelley transaction build-raw  \
    ${tx_in} \
    --tx-out $(cat payment.addr)+$(( ${total_balance} - ${poolDeposit}))  \
    --ttl $(( ${currentSlot} + 10000)) \
    --fee 0 \
    --certificate-file pool.cert \
    --certificate-file deleg.cert \
    --out-file tx.tmp

fee=$(cardano-cli shelley transaction calculate-min-fee \
    --tx-body-file tx.tmp \
    --tx-in-count ${txcnt} \
    --tx-out-count 1 \
    --mainnet \
    --witness-count 3 \
    --byron-witness-count 0 \
    --protocol-params-file params.json | awk '{ print $1 }')
echo fee: $fee

# Ensure your balance is greater than cost of fee + minPoolCost or this will not work.

txOut=$((${total_balance}-${poolDeposit}-${fee}))
echo Change Output: ${txOut}

cardano-cli shelley transaction build-raw \
    ${tx_in} \
    --tx-out $(cat payment.addr)+${txOut} \
    --ttl $(( ${currentSlot} + 10000)) \
    --fee ${fee} \
    --certificate-file pool.cert \
    --certificate-file deleg.cert \
    --out-file tx.raw