gt:tldr:b4928

The command "gt ${subcommand} --help" is a command-line instruction that is composed of several parts:

• "gt" refers to the main command or executable. It is likely an abbreviation or short form for a specific software or utility.
• "${subcommand}" is a placeholder that represents a specific subcommand or option within the main command. The actual subcommand should be placed in its position when executing the command.
• "--help" is an option or flag that is passed to the subcommand. It is used to retrieve help information or documentation about the subcommand. By appending "--help" after the subcommand, the command will display a summary of the subcommand's functionality and usage instructions.

In other words, running this command will show the help page or manual for the specified subcommand, providing details on how to use it properly and explaining the available options and arguments.