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Lotus Command Line Interface

The Command Line Interface (CLI) is a convenient way to interact with a Lotus node. You can use the CLI to operate your node, get information about the blockchain, manage your accounts and transfer funds, create storage deals, and much more!

The CLI is intended to be self-documenting, so when in doubt, simply add --help to whatever command you're trying to run! This will also display all of the input parameters that can be provided to a command.

We highlight some of the commonly used features of the CLI below. All CLI commands should be run from the home directory of the Lotus project.

Operating a Lotus node

Starting up a node

lotus daemon

This command will start up your Lotus node, with its API port open at 1234. You can pass --api=<number> to use a different port.

Checking your sync progress

lotus sync status

This command will print your current tipset height under Height, and the target tipset height under Taregt.

You can also run lotus sync wait to get constant updates on your sync progress.

Getting the head tipset

lotus chain head

Control the logging level

lotus log set-level

This command can be used to toggle the logging levels of the different systems of a Lotus node. In decreasing order of logging detail, the levels are debug, info, warn, and error.

As an example, to set the chain and blocksync to log at the debug level, run lotus log set-level --system chain --system blocksync debug.

To see the various logging system, run lotus log list.

Find out what version of Lotus you're running

lotus version

Managing your accounts

Listing accounts in your wallet

lo*tus wallet list

Creating a new account

lotus wallet new bls

This command will create a new BLS account in your wallet; these addresses start with the prefix t3. Running lotus wallet new secp256k1 (or just lotus wallet new) will create a new Secp256k1 account, which begins with the prefix t1.

Getting an account's balance

lotus wallet balance <address>

Transferring funds

lotus send --source=<source address> <destination address> <amount>

This command will transfer amount (in attoFIL) from source address to destination address.

Importing an account into your wallet

lotus wallet import <path to private key>

This command will import an account whose private key is saved at the specified file.

Exporting an account from your wallet

lotus wallet export <address>

This command will print out the private key of the specified address if it is in your wallet. Always be careful with your private key!

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