Siren 3.14

Siren renames, moves and copies files using an expression.
A lot of information associated to a file can be used:
name, extension, dates, selection number ... etc ...
other information is extracted from it according to its type:
audio, video, image (standard and raw), exif, iptc, office document,
pdf, epub, html and many others.
Many different operations can be performed on character strings.
A complete directory tree can be processed.
Images can be viewed.
For example, to change a file name to uppercase with the
mp3 extension, the expression can be: %ub.mp3