'''array names''' ''arrayName ?mode? ?pattern?''

Returns a list containing the names of all of the elements in the array that match ''pattern''. Mode may be one of '''-exact''', '''-glob''', or '''-regexp'''. If specified, ''mode'' designates which matching rules to use to match ''pattern'' against the names of the elements in the array. If not specified, ''mode'' defaults to '''-glob'''. See the documentation for '''[string match]''' for information on glob style matching, and the documentation for '''[regexp]''' for information on regexp matching. If ''pattern'' is omitted then the command returns all of the element names in the array. If there are no (matching) elements in the array, or if ''arrayName'' isn't the name of an array variable, then an empty string is returned.

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See also:

   * [array]

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