OPTION for each NAME
    	-D		Change options for the "default" command completion
    	-E		Change options for the "empty" command completion
    	-I		Change options for completion on the initial word
    
    Using `+o' instead of `-o' turns off the specified option.
    
    Arguments:
    
    Each NAME refers to a command for which a completion specification must
    have previously been defined using the `complete' builtin.  If no NAMEs
    are supplied, compopt must be called by a function currently generating
    completions, and the options for that currently-executing completion
    generator are modified.
    
    Exit Status:
    Returns success unless an invalid option is supplied or NAME does not
    have a completion specification defined.