GregTonoski

#!/bin/bash

# private_key_into_bitcoin_wif.sh: convert secp256k1 private key in hexadicimal number (HEX) to Bitcoin Wallet Import Format (WIF)
# Examples: 
# $ bash private_key_into_bitcoin_wif.sh "000ffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364139" > private_key_bitcoin.wif
# $ bash private_key_into_bitcoin_wif.sh $(< input_file.txt) > private_key_bitcoin.wif
# $ cat priv_key.txt | xargs bash private_key_into_bitcoin_wif.sh > private_key_bitcoin.wif
# $ bash private_key_into_bitcoin_wif.sh fffffffffffffffffffffffffffffffebaaedce6af48a03bbfd25e8cd0364139 | echo "$(cat) importedkeylabel false" | xargs bitcoin-cli importprivkey && bitcoin-cli getaddressesbylabel importedkeylabel
# $ openssl rand -hex 32 | xargs bash private_key_into_bitcoin_wif.sh
# $ xxd -l 32 -p -c 32 /dev/random | xargs bash private_key_into_bitcoin_wif.sh