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What does *.* Mean?


*.* stands as recognition when searching for all objects with file name and file extension!



 
Content:

1.) ... The *.* versus "?"!
2.) ... The character * in the search or as a placeholder!
3.) ... The sign ? in the search or as a placeholder!




1.) The *.* versus "?"!

If you only want to have files listed you should *.? use 

"*.*" 

belongs to so-called wildcards also known as wildcards (placeholders)


(Image-1) Wildcard-Placeholder!
Wildcard-Placeholder!


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2.) The character * in the search or as a placeholder!

When specifying file names or paths, regardless of whether DOS, Microsoft's Windows, MAC OS or Linux and other operating systems, the asterisk matches no or more characters.

For example: Search doku* finds doku and documentary but not dudu .

3.) The sign ? in the search or as a placeholder!

As mentioned above, on Windows you can stat * das ? but you have to say is a "?" Quantifiers in the regular expressions and, correctly, not a placeholder for a single character. What does that mean for us, it quantifies the previous element. This can be a character, a character class or even a group.

With Linux and DOS operating systems it is different with the question mark "?", if the question mark is at the end of the word, only individual characters are found. 

For example: will the pattern boo? booo  and booh  do not match booo1



FAQ 64: Updated on: 24 July 2022 14:05 Windows
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