rdelete file_name deletes the named files. Wildcards may be used in
the filename, as with DELETE, but also in the pathnames, which allows
for deleting a series a files belonging to different directories.
Brackets () may also be used (see rdir).
Use the functional form of rdelete, such as rdelete('file'), when the
file names are stored in a string or a cell array of strings.
rdelete(...,'verbose') displays the files being deleted.
To delete directories, see rrmdir.
rdelete('DSC*.JPG') is equivalent to DELETE('DSC*.JPG')
rdelete('*/*.JPG') deletes all the JPG-files in all the directories.
rdelete('mydir*/DSC[10:30].*') deletes the files DSC00010.* to
DSC00030.* in each directory 'mydir*'.
DELETE, rdir, RMDIR, rrmdir.
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