The help text says “a canonical python script is included in share/rpcauth”:
$ bitcoind -help | grep -A3 rpcauth
-rpcauth=<userpw>
Username and HMAC-SHA-256 hashed password for JSON-RPC connections. The
field <userpw> comes in the format: <USERNAME>:<SALT>$<HASH>. A
canonical python script is included in share/rpcauth. The client
then connects normally using the
rpcuser=<USERNAME>/rpcpassword=<PASSWORD> pair of arguments. This
option can be specified multiple times
This is true of the git repository and the source release, but that file is not available in the binary releases:
$ wget https://bitcoincore.org/bin/bitcoin-core-0.19.1/bitcoin-0.19.1-x86_64-linux-gnu.tar.gz
$ tar tzf bitcoin-0.19.1-x86_64-linux-gnu.tar.gz | grep -i rpcauth || echo FILE NOT FOUND
FILE NOT FOUND
IMO, this file should either be included with the binary releases or it should not be mentioned in the help text. I think this issue needs a decision from experienced contributors about which approach to take, and then can be tagged as a good first issue for possible implementation by a less experienced contributor.
Note: this issue is a deliberate duplicate of #14292 (by request).
