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command-help-txbump
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MMGEN-TXBUMP: Increase the fee on a replaceable (RBF) MMGen transaction,
creating a new transaction, and optionally sign and send the
new transaction
USAGE: mmgen-txbump [opts] [MMGen TX file] [seed source] ...
OPTIONS:
-h, --help Print this help message
--longhelp Print help message for long options (common options)
-a, --autosign Bump the most recent transaction created and sent with
the --autosign option. The removable device is mounted
and unmounted automatically. The transaction file
argument must be omitted. Note that only sent trans-
actions may be bumped with this option. To redo an
unsent --autosign transaction, first delete it using
‘mmgen-txsend --abort’ and then create a new one
-b, --brain-params l,p Use seed length 'l' and hash preset 'p' for
brainwallet input
-c, --comment-file f Source the transaction's comment from file 'f'
-d, --outdir d Specify an alternate directory 'd' for output
-e, --echo-passphrase Print passphrase to screen when typing it
-f, --fee f Transaction fee, as a decimal BTC amount or as
satoshis per byte (an integer followed by 's').
See FEE SPECIFICATION below.
-H, --hidden-incog-input-params f,o Read hidden incognito data from file
'f' at offset 'o' (comma-separated)
-i, --in-fmt f Input is from wallet format 'f' (see FMT CODES below)
-l, --seed-len l Specify wallet seed length of 'l' bits. This option
is required only for brainwallet and incognito inputs
with non-standard (< 256-bit) seed lengths.
-k, --keys-from-file f Provide additional keys for non-MMGen addresses
-K, --keygen-backend n Use backend 'n' for public key generation. Options
for BTC: 1:libsecp256k1 [default] 2:python-ecdsa
-M, --mmgen-keys-from-file f Provide keys for MMGen addresses in a key-
address file (output of 'mmgen-keygen'). Permits
online signing without an MMGen seed source. The
key-address file is also used to verify MMGen-to-BTC
mappings, so the user should record its checksum.
-o, --output-to-reduce o Deduct the fee from output 'o' (an integer, or 'c'
for the transaction's change output, if present)
-O, --old-incog-fmt Specify old-format incognito input
-p, --hash-preset p Use the scrypt hash parameters defined by preset 'p'
for password hashing (default: '3')
-P, --passwd-file f Get MMGen wallet passphrase from file 'f'
-q, --quiet Suppress warnings; overwrite files without prompting
-s, --send Sign and send the transaction (the default if seed
data is provided)
-v, --verbose Produce more verbose output
-y, --yes Answer 'yes' to prompts, suppress non-essential output
-z, --show-hash-presets Show information on available hash presets
FEE SPECIFICATION
Transaction fees, both on the command line and at the interactive prompt, may
be specified as either absolute BTC amounts, using a plain decimal number, or
as satoshis per byte, using an integer followed by 's', for satoshi.
Transactions may contain both MMGen or non-MMGen input addresses.
To sign non-MMGen inputs, a bitcoind wallet dump or flat key list is used
as the key source (--keys-from-file option).
To sign MMGen inputs, key data is generated from a seed as with the
mmgen-addrgen and mmgen-keygen commands. Alternatively, a key-address file
may be used (--mmgen-keys-from-file option).
Multiple wallets or other seed files can be listed on the command line in
any order. If the seeds required to sign the transaction’s inputs are not
found in these files (or in the default wallet), the user will be prompted
for seed data interactively.
To prevent an attacker from crafting transactions with bogus MMGen-to-Bitcoin
address mappings, all outputs to MMGen addresses are verified with a seed
source. Therefore, seed files or a key-address file for all MMGen outputs
must also be supplied on the command line if the data can’t be found in the
default wallet.
Seed source files must have the canonical extensions listed in the 'FileExt'
column below:
FMT CODES:
Format FileExt Valid codes
------ ------- -----------
BIP39Mnemonic .bip39 bip39
Brainwallet .mmbrain mmbrain,brainwallet,brain,bw
DieRollWallet .b6d b6d,die,dieroll
IncogWallet .mmincog mmincog,incog,icg,i
IncogWalletHex .mmincox mmincox,incox,incog_hex,ix,xi
IncogWalletHidden None incog_hidden,hincog,ih,hi
MMGenHexSeedFile .mmhex seedhex,hexseed,mmhex
MMGenMnemonic .mmwords mmwords,words,mnemonic,mn,m
MMGenSeedFile .mmseed mmseed,seed,s
MMGenWallet .mmdat wallet,w
PlainHexSeedFile .hex hex,rawhex,plainhex
MMGEN v15.0.0 September 2024 MMGEN-TXBUMP(1)
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