mimeopen --version (return code: 0)
mimeopen 0.27 Copyright (c) 2005, 2012 Jaap G Karssenberg. All rights reserved. This program is free software; you can redistribute it and/or modify it under the same terms as Perl. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
mimeopen --help (return code: 0)
Usage: mimeopen [options] [-] files Options: -a, --ask Do not execute the default application but ask which application to run. This does not change the default application. -d, --ask-default Let the user choose a new default program for given files. -n, --no-ask Don't ask the user which program to use. Choose the default program or the first program known to handle the file mimetype. This does not set the default application. -M, --magic-only Do not check for extensions, globs or inode type, only look at the content of the file. This is particularly useful if for some reason you don't trust the name or the extension a file has. --database=*mimedir*:*mimedir*:... Force the program to look in these directories for the shared mime-info database. The directories specified by the basedir specification are ignored. -D, --debug Print debug information about how the mimetype was determined. -h, --help -u, --usage Print a help message and exits. -v, --version Print the version of the program and exit.