Using bitcoin utilities on Fedora, CentOS and Red Hat Enterprise Linux
======================================================================

The bitcoin-cli and bitcoin-tx commands allow you to communicate with a running
Bitcoin daemon on a local or remote host.

Configuration
-------------

By default bitcoin-cli looks for configuration at /etc/bitcoin/bitcoin.conf.
This must be readable only by users authorized to communicate with bitcoind.
See the README file included with bitcoin-server for further details.

Berkeley DB
-----------

On all platforms, including RHEL/CentOS/Fedora and the upstream build, bitcoin
uses Berkeley DB 4.8.
Oracle makes clear that binary compatibility is not guaranteed even between minor
releases of Berkeley DB. This has implications if you move your wallet to and
from a system with a different Berkeley DB version.

It is strongly recommended that if you change Berkeley DB versions you first
dump your wallet from the old system into a text file, and then import the
wallet into the new system.

To dump or import a wallet from a Bitcoin daemon, you will need to use the
bitcoin-cli utility.

To dump your wallet on the old system, enter the command:

    bitcoin-wallet dumpwallet path/to/filename.txt

Copy filename.txt from the old system to the new system, being aware that it
is not encrypted and taking appropriate precautions.

To import your wallet on the new system, enter the command:

    bitcoin-wallet importwallet path/to/filename.txt

Bitcoin will automatically begin rescanning the block chain after the import is
complete. The rescan will take several minutes, depending on the speed of the
system's CPU and hard drives.