DOS wildcard


DOS wildcard style expressions (“*”, “.”, and “?”) provide a convenient way to specify file names, similar to the way in which DOS wildcard characters are used. For example, match lists of type DOS wildcard are typically used with the Attachment Name Attribute to specify file names such as *.exe. In addition, a DOS wildcard expression lets you easily specify files without extensions.


Table: DOS wildcard expressions

DOS wildcard expression

Equivalent regular expression


* .* Zero or more of any character
? [^\.] Any one character except the period (.)
. \. Literal period character
*. [^\.]+\.? Does not contain a period, but can end with one








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