diff --git a/qa/pull-tester/rpc-tests.py b/qa/pull-tester/rpc-tests.py
index 72200a696..33755dca4 100755
--- a/qa/pull-tester/rpc-tests.py
+++ b/qa/pull-tester/rpc-tests.py
@@ -144,6 +144,7 @@ BASE_SCRIPTS= [
     'wallet_z_sendmany.py',
     'wallet_zero_value.py',
     'threeofthreerestore.py',
+    'show_help.py',
 ]
 
 ZMQ_SCRIPTS = [
diff --git a/qa/rpc-tests/show_help.py b/qa/rpc-tests/show_help.py
new file mode 100755
index 000000000..ff8458261
--- /dev/null
+++ b/qa/rpc-tests/show_help.py
@@ -0,0 +1,504 @@
+#!/usr/bin/env python3
+# Copyright (c) 2014-2016 The Bitcoin Core developers
+# Copyright (c) 2017-2022 The Zcash developers
+# Distributed under the MIT software license, see the accompanying
+# file COPYING or https://www.opensource.org/licenses/mit-license.php .
+
+#
+# Test --help
+#
+
+from test_framework.test_framework import BitcoinTestFramework
+from test_framework.util import assert_equal, assert_true, zcashd_binary
+import subprocess
+import tempfile
+import time
+
+help_message = """
+In order to ensure you are adequately protecting your privacy when using Zcash,
+please see <https://z.cash/support/security/>.
+
+Usage:
+  zcashd [options]                     Start Zcash Daemon
+
+Options:
+
+  -?
+       This help message
+
+  -alerts
+       Receive and display P2P network alerts (default: 1)
+
+  -alertnotify=<cmd>
+       Execute command when a relevant alert is received or we see a really
+       long fork (%s in cmd is replaced by message)
+
+  -allowdeprecated=<feature>
+       Explicitly allow the use of the specified deprecated feature. Multiple
+       instances of this parameter are permitted; values for <feature> must be
+       selected from among {"none", "addrtype", "getnewaddress",
+       "getrawchangeaddress", "legacy_privacy", "wallettxvjoinsplit",
+       "z_getbalance", "z_getnewaddress", "z_gettotalbalance",
+       "z_listaddresses", "dumpwallet", "zcrawjoinsplit", "zcrawkeygen",
+       "zcrawreceive"}
+
+  -blocknotify=<cmd>
+       Execute command when the best block changes (%s in cmd is replaced by
+       block hash)
+
+  -checkblocks=<n>
+       How many blocks to check at startup (default: 288, 0 = all)
+
+  -checklevel=<n>
+       How thorough the block verification of -checkblocks is (0-4, default: 3)
+
+  -conf=<file>
+       Specify configuration file (default: zcash.conf)
+
+  -daemon
+       Run in the background as a daemon and accept commands
+
+  -datadir=<dir>
+       Specify data directory (this path cannot use '~')
+
+  -paramsdir=<dir>
+       Specify Zcash network parameters directory
+
+  -dbcache=<n>
+       Set database cache size in megabytes (4 to 16384, default: 450)
+
+  -debuglogfile=<file>
+       Specify location of debug log file: this can be an absolute path or a
+       path relative to the data directory (default: debug.log)
+
+  -exportdir=<dir>
+       Specify directory to be used when exporting data
+
+  -ibdskiptxverification
+       Skip transaction verification during initial block download up to the
+       last checkpoint height. Incompatible with flags that disable
+       checkpoints. (default = 0)
+
+  -loadblock=<file>
+       Imports blocks from external blk000??.dat file on startup
+
+  -maxorphantx=<n>
+       Keep at most <n> unconnectable transactions in memory (default: 100)
+
+  -par=<n>
+       Set the number of script verification threads (-8 to 16, 0 = auto, <0 =
+       leave that many cores free, default: 0)
+
+  -pid=<file>
+       Specify pid file (default: zcashd.pid)
+
+  -prune=<n>
+       Reduce storage requirements by pruning (deleting) old blocks. This mode
+       disables wallet support and is incompatible with -txindex. Warning:
+       Reverting this setting requires re-downloading the entire blockchain.
+       (default: 0 = disable pruning blocks, >550 = target size in MiB to use
+       for block files)
+
+  -reindex-chainstate
+       Rebuild chain state from the currently indexed blocks (implies -rescan)
+
+  -reindex
+       Rebuild chain state and block index from the blk*.dat files on disk
+       (implies -rescan)
+
+  -sysperms
+       Create new files with system default permissions, instead of umask 077
+       (only effective with disabled wallet functionality)
+
+  -txexpirynotify=<cmd>
+       Execute command when transaction expires (%s in cmd is replaced by
+       transaction id)
+
+  -txindex
+       Maintain a full transaction index, used by the getrawtransaction rpc
+       call (default: 0)
+
+Connection options:
+
+  -addnode=<ip>
+       Add a node to connect to and attempt to keep the connection open
+
+  -banscore=<n>
+       Threshold for disconnecting misbehaving peers (default: 100)
+
+  -bantime=<n>
+       Number of seconds to keep misbehaving peers from reconnecting (default:
+       86400)
+
+  -bind=<addr>
+       Bind to given address and always listen on it. Use [host]:port notation
+       for IPv6
+
+  -connect=<ip>
+       Connect only to the specified node(s); -noconnect or -connect=0 alone to
+       disable automatic connections
+
+  -discover
+       Discover own IP addresses (default: 1 when listening and no -externalip
+       or -proxy)
+
+  -dns
+       Allow DNS lookups for -addnode, -seednode and -connect (default: 1)
+
+  -dnsseed
+       Query for peer addresses via DNS lookup, if low on addresses (default: 1
+       unless -connect/-noconnect)
+
+  -externalip=<ip>
+       Specify your own public address
+
+  -forcednsseed
+       Always query for peer addresses via DNS lookup (default: 0)
+
+  -listen
+       Accept connections from outside (default: 1 if no -proxy or
+       -connect/-noconnect)
+
+  -listenonion
+       Automatically create Tor hidden service (default: 1)
+
+  -maxconnections=<n>
+       Maintain at most <n> connections to peers (default: 125)
+
+  -maxreceivebuffer=<n>
+       Maximum per-connection receive buffer, <n>*1000 bytes (default: 5000)
+
+  -maxsendbuffer=<n>
+       Maximum per-connection send buffer, <n>*1000 bytes (default: 1000)
+
+  -mempoolevictionmemoryminutes=<n>
+       The number of minutes before allowing rejected transactions to re-enter
+       the mempool. (default: 60)
+
+  -mempooltxcostlimit=<n>
+       An upper bound on the maximum size in bytes of all transactions in the
+       mempool. (default: 80000000)
+
+  -onion=<ip:port>
+       Use separate SOCKS5 proxy to reach peers via Tor hidden services
+       (default: -proxy)
+
+  -onlynet=<net>
+       Only connect to nodes in network <net> (ipv4, ipv6 or onion)
+
+  -permitbaremultisig
+       Relay non-P2SH multisig (default: 1)
+
+  -peerbloomfilters
+       Support filtering of blocks and transaction with bloom filters (default:
+       1)
+
+  -port=<port>
+       Listen for connections on <port> (default: 8233 or testnet: 18233)
+
+  -proxy=<ip:port>
+       Connect through SOCKS5 proxy
+
+  -proxyrandomize
+       Randomize credentials for every proxy connection. This enables Tor
+       stream isolation (default: 1)
+
+  -seednode=<ip>
+       Connect to a node to retrieve peer addresses, and disconnect
+
+  -timeout=<n>
+       Specify connection timeout in milliseconds (minimum: 1, default: 5000)
+
+  -torcontrol=<ip>:<port>
+       Tor control port to use if onion listening enabled (default:
+       127.0.0.1:9051)
+
+  -torpassword=<pass>
+       Tor control port password (default: empty)
+
+  -whitebind=<addr>
+       Bind to given address and whitelist peers connecting to it. Use
+       [host]:port notation for IPv6
+
+  -whitelist=<netmask>
+       Whitelist peers connecting from the given netmask or IP address. Can be
+       specified multiple times. Whitelisted peers cannot be DoS banned and
+       their transactions are always relayed, even if they are already in the
+       mempool, useful e.g. for a gateway
+
+  -whitelistrelay
+       Accept relayed transactions received from whitelisted inbound peers even
+       when not relaying transactions (default: 1)
+
+  -whitelistforcerelay
+       Force relay of transactions from whitelisted inbound peers even they
+       violate local relay policy (default: 1)
+
+  -maxuploadtarget=<n>
+       Tries to keep outbound traffic under the given target (in MiB per 24h),
+       0 = no limit (default: 0)
+
+Wallet options:
+
+  -disablewallet
+       Do not load the wallet and disable wallet RPC calls
+
+  -keypool=<n>
+       Set key pool size to <n> (default: 100)
+
+  -migration
+       Enable the Sprout to Sapling migration
+
+  -migrationdestaddress=<zaddr>
+       Set the Sapling migration address
+
+  -mintxfee=<amt>
+       Fees (in ZEC/kB) smaller than this are considered zero fee for
+       transaction creation (default: 0.00001)
+
+  -orchardactionlimit=<n>
+       Set the maximum number of Orchard actions permitted in a transaction
+       (default 50)
+
+  -paytxfee=<amt>
+       Fee (in ZEC/kB) to add to transactions you send (default: 0.00)
+
+  -rescan
+       Rescan the block chain for missing wallet transactions on startup
+
+  -salvagewallet
+       Attempt to recover private keys from a corrupt wallet on startup
+       (implies -rescan)
+
+  -sendfreetransactions
+       Send transactions as zero-fee transactions if possible (default: 0)
+
+  -spendzeroconfchange
+       Spend unconfirmed change when sending transactions (default: 1)
+
+  -txconfirmtarget=<n>
+       If paytxfee is not set, include enough fee so transactions begin
+       confirmation on average within n blocks (default: 2)
+
+  -txexpirydelta
+       Set the number of blocks after which a transaction that has not been
+       mined will become invalid (min: 4, default: 20 (pre-Blossom) or 40
+       (post-Blossom))
+
+  -upgradewallet
+       Upgrade wallet to latest format on startup
+
+  -wallet=<file>
+       Specify wallet file absolute path or a path relative to the data
+       directory (default: wallet.dat)
+
+  -walletbroadcast
+       Make the wallet broadcast transactions (default: 1)
+
+  -walletnotify=<cmd>
+       Execute command when a wallet transaction changes (%s in cmd is replaced
+       by TxID)
+
+  -zapwallettxes=<mode>
+       Delete all wallet transactions and only recover those parts of the
+       blockchain through -rescan on startup (1 = keep tx meta data e.g.
+       account owner and payment request information, 2 = drop tx meta data)
+
+  -walletrequirebackup=<bool>
+       By default, the wallet will not allow generation of new spending keys &
+       addresses from the mnemonic seed until the backup of that seed has been
+       confirmed with the `zcashd-wallet-tool` utility. A user may start zcashd
+       with `-walletrequirebackup=false` to allow generation of spending keys
+       even if the backup has not yet been confirmed.
+
+ZeroMQ notification options:
+
+  -zmqpubhashblock=<address>
+       Enable publish hash block in <address>
+
+  -zmqpubhashtx=<address>
+       Enable publish hash transaction in <address>
+
+  -zmqpubrawblock=<address>
+       Enable publish raw block in <address>
+
+  -zmqpubrawtx=<address>
+       Enable publish raw transaction in <address>
+
+Monitoring options:
+
+  -metricsallowip=<ip>
+       Allow metrics connections from specified source. Valid for <ip> are a
+       single IP (e.g. 1.2.3.4), a network/netmask (e.g. 1.2.3.4/255.255.255.0)
+       or a network/CIDR (e.g. 1.2.3.4/24). This option can be specified
+       multiple times. (default: only localhost)
+
+  -metricsbind=<addr>
+       Bind to given address to listen for metrics connections. (default: bind
+       to all interfaces)
+
+  -prometheusport=<port>
+       Expose node metrics in the Prometheus exposition format. An HTTP
+       listener will be started on <port>, which responds to GET requests on
+       any request path. Use -metricsallowip and -metricsbind to control
+       access.
+
+Debugging/Testing options:
+
+  -debug=<category>
+       Output debugging information (default: 0, supplying <category> is
+       optional). If <category> is not supplied or if <category> = 1, output
+       all debugging information. <category> can be: addrman, alert, bench,
+       coindb, db, estimatefee, http, libevent, lock, mempool, mempoolrej, net,
+       partitioncheck, pow, proxy, prune, rand, receiveunsafe, reindex, rpc,
+       selectcoins, tor, zmq, zrpc, zrpcunsafe (implies zrpc). For multiple
+       specific categories use -debug=<category> multiple times.
+
+  -experimentalfeatures
+       Enable use of experimental features
+
+  -help-debug
+       Show all debugging options (usage: --help -help-debug)
+
+  -logips
+       Include IP addresses in debug output (default: 0)
+
+  -logtimestamps
+       Prepend debug output with timestamp (default: 1)
+
+  -minrelaytxfee=<amt>
+       Fees (in ZEC/kB) smaller than this are considered zero fee for relaying,
+       mining and transaction creation (default: 0.000001)
+
+  -maxtxfee=<amt>
+       Maximum total fees (in ZEC) to use in a single wallet transaction or raw
+       transaction; setting this too low may abort large transactions (default:
+       0.10)
+
+  -printtoconsole
+       Send trace/debug info to console instead of debug log
+
+Chain selection options:
+
+  -testnet
+       Use the test chain
+
+Node relay options:
+
+  -datacarrier
+       Relay and mine data carrier transactions (default: 1)
+
+  -datacarriersize
+       Maximum size of data in data carrier transactions we relay and mine
+       (default: 83)
+
+Block creation options:
+
+  -blockminsize=<n>
+       Set minimum block size in bytes (default: 0)
+
+  -blockmaxsize=<n>
+       Set maximum block size in bytes (default: 2000000)
+
+  -blockprioritysize=<n>
+       Set maximum size of high-priority/low-fee transactions in bytes
+       (default: 1000000)
+
+Mining options:
+
+  -gen
+       Generate coins (default: 0)
+
+  -genproclimit=<n>
+       Set the number of threads for coin generation if enabled (-1 = all
+       cores, default: 1)
+
+  -equihashsolver=<name>
+       Specify the Equihash solver to be used if enabled (default: "default")
+
+  -mineraddress=<addr>
+       Send mined coins to a specific single address
+
+  -minetolocalwallet
+       Require that mined blocks use a coinbase address in the local wallet
+       (default: 1)
+
+RPC server options:
+
+  -server
+       Accept command line and JSON-RPC commands
+
+  -rest
+       Accept public REST requests (default: 0)
+
+  -rpcbind=<addr>
+       Bind to given address to listen for JSON-RPC connections. Use
+       [host]:port notation for IPv6. This option can be specified multiple
+       times (default: bind to all interfaces)
+
+  -rpcuser=<user>
+       Username for JSON-RPC connections
+
+  -rpcpassword=<pw>
+       Password for JSON-RPC connections
+
+  -rpcauth=<userpw>
+       Username and hashed password for JSON-RPC connections. The field
+       <userpw> comes in the format: <USERNAME>:<SALT>$<HASH>. A canonical
+       python script is included in share/rpcuser. This option can be specified
+       multiple times
+
+  -rpcport=<port>
+       Listen for JSON-RPC connections on <port> (default: 8232 or testnet:
+       18232)
+
+  -rpcallowip=<ip>
+       Allow JSON-RPC connections from specified source. Valid for <ip> are a
+       single IP (e.g. 1.2.3.4), a network/netmask (e.g. 1.2.3.4/255.255.255.0)
+       or a network/CIDR (e.g. 1.2.3.4/24). This option can be specified
+       multiple times
+
+  -rpcthreads=<n>
+       Set the number of threads to service RPC calls (default: 4)
+
+Metrics Options (only if -daemon and -printtoconsole are not set):
+
+  -showmetrics
+       Show metrics on stdout (default: 1 if running in a console, 0 otherwise)
+
+  -metricsui
+       Set to 1 for a persistent metrics screen, 0 for sequential metrics
+       output (default: 1 if running in a console, 0 otherwise)
+
+  -metricsrefreshtime
+       Number of seconds between metrics refreshes (default: 1 if running in a
+       console, 600 otherwise)
+
+Compatibility options:
+
+  -preferredtxversion
+       Preferentially create transactions having the specified version when
+       possible (default: 4)
+"""
+
+class ShowHelpTest(BitcoinTestFramework):
+
+    def setup_network(self):
+        self.nodes = []
+
+    def show_help(self):
+        with tempfile.SpooledTemporaryFile(max_size=2**16) as log_stdout:
+            args = [ zcashd_binary(), "--help" ]
+            process = subprocess.Popen(args, stdout=log_stdout)
+            while process.poll() is None:
+                time.sleep(0.25)
+            assert_equal(process.returncode, 0)
+            log_stdout.seek(0)
+            stdout = log_stdout.read().decode('utf-8')
+            assert_true(help_message in stdout)
+
+    def run_test(self):
+        self.show_help()
+
+if __name__ == '__main__':
+    ShowHelpTest().main()
diff --git a/qa/rpc-tests/test_framework/util.py b/qa/rpc-tests/test_framework/util.py
index 13b439b10..90b127f4e 100644
--- a/qa/rpc-tests/test_framework/util.py
+++ b/qa/rpc-tests/test_framework/util.py
@@ -406,7 +406,7 @@ def start_node(i, dirname, extra_args=None, rpchost=None, timewait=None, binary=
     """
     datadir = os.path.join(dirname, "node"+str(i))
     if binary is None:
-        binary = os.getenv("ZCASHD", ZCASHD_BINARY)
+        binary = zcashd_binary()
     args = [ binary, "-datadir="+datadir, "-keypool=1", "-discover=0", "-rest" ]
     args.extend([
         '-nuparams=5ba81b19:1', # Overwinter