jv-convert --version (return code: 0)
jv-convert (GNU libgcj) 6.4.0 20170920
Copyright (C) 2013 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
jv-convert --help (return code: 0)
Usage: jv-convert [OPTIONS] [INPUTFILE [OUTPUTFILE]]
Convert from one encoding to another.
--encoding FROM
--from FROM use FROM as source encoding name
--to TO use TO as target encoding name
-i FILE read from FILE
-o FILE print output to FILE
--reverse swap FROM and TO encodings
--help print this help, then exit
--version print version number, then exit
`-' as a file name argument can be used to refer to stdin or stdout.