Usage:
 copyfilerange [options] <source> <destination> <range>...

Copy the specified range(s) from source to destination file.

Options:
 -r, --ranges <file>     read ranges separated by newlines from this file
 -v, --verbose           verbose mode

 -h, --help              display this help
 -V, --version           display version

Arguments:
 <range> is of the form <source_offset>:<destination_offset>:<length>,
 with all values in bytes. If <length> is 0, as much data as available
 is copied. When an offset is omitted, the last file position is used.

For more details see copyfilerange(1).