The command name is the filename of the command that is to be executed.

To execute a command, you must specify appropriate environment variables in your environment settings. For details about how to specify the environment variables that are required for execution of the xtrepO command, see 2.2.3 Specifying environment variables.

An option specifies one of the following types of information:

• A qualification of the command's action
• A qualification of the object of the action

The following explains how to specify options. In the examples, the dollar sign ($) indicates a shell prompt and cmd indicates the command name.

• An option is a character string beginning with a hyphen (-). It can be followed by flag arguments (or by no flag arguments). The following is the format of an option:
  

  -option-flag

  or
  

  -option-flag flag-arguments

  option-flag: One alphanumeric character (which is case sensitive)
  flag-arguments: Arguments of the option flag (when you specify multiple flag arguments, you separate them with the comma (,))
  
• If an option flag has a required flag argument, you cannot omit that flag argument.
• If a flag argument contains a space, you must enclose the entire flag argument in double quotation marks (") in order to enter the command from the shell.
  

  Example

  Option f with arguments 1 and 2 is specified as follows:

  $ cmd -f "1 2"

• You cannot specify the same option flag more than once.
• Specify all options before any command arguments.

The command argument specifies the direct object of the command's action.