# hg > A command-line interface for Mercurial, a distributed source control management system. > Some subcommands such as `hg commit` have their own usage documentation. > More information: . - Execute Mercurial command: `hg {{command}}` - Call general help: `hg help` - Call help on a command: `hg help {{command}}` - Check the Mercurial version: `hg --version`