DOS Command Attrib
Displays or changes file attributes
ATTRIB [+R | -R] [+A | -a] [+S | -S] [+H | -H] [[drive:][path]filename] [/S]
| + | Sets the attribute. | 
| - | Clears the attribute | 
| R | Read-only | 
| A | Archive | 
| S | System file | 
| H | Hidden file | 
| /S | Processes files in all directories in the specified path | 
Examples
attrib +r file.txt - makes file.txt read only and cannot be edited.
attrib -r file.txt - makes file.txt edited.
attrib +h myfile.txt - makes the file hidden so a user will not see it.
attrib -h myfile.txt - makes the file unhidden and allows the user to see the file.
This page is from http://www.easydos.com. I pasted it on my website to avoid possible broken links. For further help with DOS commands, Check easydos.com out.
