Windows XP Pocket Reference
| ren or rename |
Use ren to rename any single file or directory, or even several files at once via wildcards, * and ? . The syntax is:
ren [ filename1 ] [ filename2 ]
where filename1 is the name of the existing object, and filename2 is the new name to assign.
Examples
rename myfile.txt file.txt ren "chap 5.doc" "sect 5.doc" ren chap?5.doc sect?5.doc ren chap*.doc revchap*.doc ren *.htm *.html