How to Windows generates 8.3 file Names from Long File Names
Windows generates short file names from a long file names in the following manner:
- Windows deletes any invalid characters and spaces from the file name. Invalid characters include:. " / \ [ ] : ; = ,
- Because short file names can contain only one period (.), Windows removes additional periods from the file name if valid, Non-space characters follow the final period in the file name. For example, Windows generates the short file namethisis~1.txtfrom The long file namethis is a really long filename.123.45 6.789.txtOtherwise, Windows ignores the final period and uses the next to the last period. For example, Windows generates the short file namethisis~1.789from The long file namethis is a really long filename.123.45 6.789.
- Windows truncates the file name, if necessary, to six characters and appends a tilde (~) and a digit. For example, the unique file name created ends with "to". Duplicate file names end with "~", "~" and so on.
- Windows truncates the file name extension to three characters or less.
- Windows translates all characters with the file name and extension to uppercase.
Note if a folder or file name contains a space, but less than eight characters, Windows still creates a short file na Me. This behavior could cause problems if you attempt to access such a file or folder over a network. To work around-situation, substitute a valid character, such as an underscore (_), for the space. If you do so, Windows does not create a different short file name
For example, "Afile~1.doc" was generated from "a File.doc" because the long file name contains A space.
No short file name was generated from ' A_file.doc ' because the file name contains less than eight characters and does not C Ontain a space.
The short file name "Alongf~1.txt" was generated from the long file name "A long filename.txt" because the long file name C Ontains more than eight characters.
Transferred from: http://www.cnblogs.com/jiangzhen/p/3957333.html
[Go]windows short filename/short path name rule
