CL parameters

A parameter is a value that is passed to a command or program to provide user input or control the actions of the command or program.

Parameter values
A parameter value is user-supplied information that is used during the running of a command.
Parameters in keyword and positional form
You can specify parameters in CL using keyword form, positional form, or in a combination of the two.
Required, optional, and key parameters
A CL command can have parameters that must be coded (required parameters) and parameters that do not have to be coded (optional parameters).
Commonly used parameters
Some parameters are commonly used in many CL commands.
Parameter values used for testing and debugging
The IBM® i operating system includes functions that let a programmer observe operations performed as a program runs.

Parent topic: CL concepts