bitcoin-qt wrapper to support multiple wallets

bitcoin-qt

#!/bin/bash -eu

shopt -s extglob # enables pattern lists like +(...|...)

###

# NOTE: Adapt constants below:
BITCOIN_BIN="/home/xxx/bitcoin-0.9.2.1-linux/bin/64/bitcoin-qt"
WALLET_PREFIX="/home/xxx/.bitcoin."
WALLETS=(coinbase kraken etc)

###

[ $# -eq 1 ] || { echo "Usage: $0 <wallet_name>" >&2; exit 1; }

CURRENT_WALLET="$1"
WALLETS_PATTERN="$(printf "|%s" "${WALLETS[@]}")"
WALLETS_PATTERN="+(${WALLETS_PATTERN:1})"

case "${CURRENT_WALLET}" in

  $WALLETS_PATTERN)
    $BITCOIN_BIN -datadir="${WALLET_PREFIX}${CURRENT_WALLET}";;

  *)
    echo "Wallet \`${CURRENT_WALLET}' not found. Valid wallets are: ${WALLETS[@]}" >&2
    exit 1;;

esac