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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. Other information is extracted from it according to its type: audio, video, image (standard and RAW), EXIF, IPTC, Office document, PDF, HTML, executable, DV AVI, karaoke, torrent and URL.

Many different operations can be performed on character strings. A complete directory tree can be processed. Images can be viewed. For example, the expression can be: %ub.mp3 can be used to change a file name to uppercase with the MP3 extension.

Features

In an expression a lot of information associated to a file can be used
Name, base name, extension, size, dates et times, dos name, paths etc.
Selection number (not depending on the position of the file in the list)
Numeric or non numeric parts of the name
Information extracted (depending on the file type and the platform) :
All platforms
Audio aac, ape, asf, au, flac, kar, m4a, m4b, m4r, mid, mka, mp2, mp3, mpc, oga, ogg, ogm, ra, rm, rmvb, wav, wm, wma
Video 3gp, avi, divx, f4v, flv, m4v, mkv, mov, mp4, mpeg, mpg, ogv, rv, swf, webm, wmv
Image bmp, cur, dib, gif, ico, jpeg, jpg, mpo, pcx, png, pnm, ppm, svg, tga, thm, tif, tiff, tpic, webp, xpm
Raw image 3fr, arw, cr2, crw, dcr, dng, erf, kdc, mef, mos, mrw, nef, nrw, orf, pef, raf, raw, rw2, sr2, srf, x3f
Document epub, eml, odt, ods, odp, ott, pdf, html, htm
Package apk, crx, deb, rpm, xpi
Miscellaneous desktop, htb, iso, jar, mo, otf, torrent, ttf, url, war, zip
Windows only
Executable exe, dll, com, ocx, cpl, tlb, vbx, olb, cnv, rll
Office doc, xls, xla, xlt, pot, pps, ppt, ppa, mpp, dot, msi, msp, mst
Miscellaneous lnk
Checksum : crc32, md5, sha1
Fixed text
System date and time, random values etc.
Lines extracted from the clipboard
Lines extracted from text files
Environment variables

The following features can be applied :
Case modification (uppercase/lowercase)
Substring extractions
String replacements and deletions
Regular Expressions
Transliteration
Change date formats
Use information from other files
etc.