yes
Use the DEL command followed by the names of the files using wildcards. The optional /Q switch turns off prompting for each file matching the wildcard. The double quotes are required to cater for file names containing spaces. DEL /Q "*.jpg" "*.docx"
Enclose the filename in double quotes
Yes, but it's not recommended as it will be complicated. To add spaces, you use the backslash followed by a space character.
Filenames could consist of no more than 8 letters and a 3 letter extension. There were no spaces allowed in filenames. There were various reserved words that could not be used as file names and characters that could not be used in the names, as these names and characters had other uses.
It depends on the filesystem, but modern filesystems will allow this.
no, it isn't :(
Google treats hyphens as spaces. It is considered to be Google does not treat underscores as spaces. Because of this, the string "xxxxxx" will not show up in a search for "xxxxxx", but the string "xxxx-xxx" will show up in that search. The end result is that hyphens are much better, from an SEO perspective, than underscores. This rule seems to hold true for use in text, in file names, and in domain names.
click file, then preferences, next click multiple then enter
so you remember whats in the folder
An invalid file name is one that contains characters or formats not permitted by the operating system. For example, in Windows, file names cannot include characters like \ / : * ? " < > |. Additionally, names that are too long or use reserved names (like "CON" or "PRN") are also considered invalid. Each operating system has its own rules governing valid file names.
You can not use any of the following: \ / : * ? " < > |
only Dos-based operating systems use dot-three file extensions