cannot exceed 260 characters
255 characters maximum
space or hypen
space or hypen
260
Following characters are not allowed in the file name (Separated by comma). /, \, ?, %, *, :, |, ", < and >
In DOS, 8 characters.In Windows, 254 characters.
On FAT16 partitions, you are limited to 8 characters for the name plus 3 for the file extension. If you have FAT32 and a capable kernel, you can use up to 255 characters in total as a file name.In the original MS-DOS of the pre-Windows 95 era, filenames were only allowed to have 8 letters, followed by a period '.', then only 3 letters for the file extension.After Windows 95, filenames can have a maximum of 255 characters.
The maximum length of a directory name or file name is affected by the location itself.The maximum length of the path to a file on a modern Operating System is 255 characters.
On FAT16 partitions, you are limited to 8 characters for the name plus 3 for the file extension. If you have FAT32 and a capable kernel, you can use up to 255 characters in total as a file name.In the original MS-DOS of the pre-Windows 95 era, filenames were only allowed to have 8 letters, followed by a period '.', then only 3 letters for the file extension.After Windows 95, filenames can have a maximum of 255 characters.
The following characters: colon, question mark, greater than symbol, less than symbol, backslash, slash, asterisk, quotation mark, or vertical bar.
You can use file name as filename.extension. File name in DOS can be maximum of 8 characters and extension is maximum of 3 characters. If you create any file having more character then it will automatically exclude the remaining characters. Say if you create dharmsansar then DOS will save it as dharmsa~..
This page website contains list of characters not allowed in a filename on windows, mac, Linux/unix http://www.comentum.com/File-Systems-HFS-FAT-UFS.HTML