fidentify --version (return code: 0)
fidentify 7.0, Data Recovery Utility, April 2015
Christophe GRENIER <grenier@cgsecurity.org>
http://www.cgsecurity.org
Version: 7.0
Compiler: GCC 6.3
libjpeg: libjpeg-turbo-1.5.1
OS: Linux, kernel 4.10.0-35-generic (#39-Ubuntu SMP Wed Sep 13 07:46:59 UTC 2017) x86_64
fidentify --help (return code: 0)
Usage: fidentify [--check] [directory]
fidentify --version
fidentify determine the file type, the 'extension', by using the same database than PhotoRec.