Emerald offline wallet command line interface.

Usage:
  emerald mnemonic
  emerald server        [--chain=<chain>] [--port=<port>] [--host=<host>] [--base-path=<path>] [-v | --verbose] [-q | --quite]
  emerald new           [--chain=<chain>]  ([[--security-level=<level>] [--name=<name>] [--description=<description>]] | --raw <key>)
  emerald list          [--chain=<chain>]  [--show-hidden]
  emerald hide          [--chain=<chain>]  <address>
  emerald unhide        [--chain=<chain>]  ([-a | --all] | <address>)
  emerald strip         [--chain=<chain>] <address>
  emerald import        [--chain=<chain>]  [-a | --all] [-f | --force] <path>
  emerald export        [--chain=<chain>]  ([-a | --all] | <address>) <path>
  emerald update        [--chain=<chain>]  <address> [--name=<name>] [--description=<description>]
  emerald transaction   [--chain=<chain>] <from> <to> <value> [--gas=<gas>] [--gas-price=<price>] [--data=<data>]\
                            (--nonce=<nonce> | --upstream=<upstream>) (--raw [<raw_tx> | - ])
  emerald balance       <address> [--upstream=<upstream>]
  emerald -V | --version
  emerald -h | --help

Options:
  -a, --all                                   Apply action to all accounts
  -c, --chain=<mainnet|testnet>               Chain name
  -f, --force                                 Override existing keystore file
  -h, --help                                  Show this message
  -V, --version                               Show current version
  -r, --raw                                   Use raw input as value (ex.: private key, rlp-encoded signed transaction)
  -q, --quiet                                 Only errors printed to the output
  -v, --verbose                               Verbose output
      --data=<data>                           Optional data included in a transaction
      --name=<name>                           Account name
      --description=<description>             Account description
      --host=<host>                           Listen host [default: 127.0.0.1]
      --port=<port>                           Listen port [default: 1920]
      --base-path=<path>                      Base directory path, if omitted default os-specific value will be used:
                                                  + Mac OS X: ~/Library/Emerald
                                                  + Linux: ~/.emerald
                                                  + Windows: %USERDIR%\.emerald
      --security-level=<normal|high|ultra>    Level of security for cryptographic operations [default: ultra]
      --show-hidden                           Include hidden keyfiles
      --upstream=<upstream>                   URL to ethereum node
      --gas=<gas>                             Gas limit for transaction, hex-encoded value  in `wei`
      --gas-price=<price>                     Gas price for transaction, hex-encoded value  in `wei`
      --nonce=<nonce>                         Transaction count of sender