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ZCK_DELTA_SIZE(1)	    General Commands Manual	     ZCK_DELTA_SIZE(1)

NAME
       zck_delta_size -- calculate the differences between two zchunk files

SYNOPSIS
       zck_delta_size [-v | --verbose] file1 file2
       zck_delta_size -? | --help | --usage | --version

DESCRIPTION
       The zck_delta_size utility examines two zchunk compressed files and de-
       termines	how similar they are: how many chunks are the same between the
       files,  so that tools like e.g.	rsync(1) or zckdl(1) could only	trans-
       fer the small parts that	differ instead of the full files.  This	is es-
       pecially	useful for structured files that have  been  compressed	 using
       the zck(1) tool's -s (--split) option.

       The zck_delta_size utility accepts the following	optional arguments:

       -v, --verbose
	       Verbose operation; display some diagnostic output.

       -?, --help
	       Display program usage information and exit.

       --usage
	       Display brief program usage information and exit.

       --version
	       Display program version information and exit.

EXIT STATUS
       The  zck_delta_size  utility exits 0 on success,	and >0 if an error oc-
       curs.

EXAMPLES
       Examine two zchunk files:

	     zck_delta_size doc1.txt.zck doc2.txt.zck

SEE ALSO
       unzck(1), zck(1), zck_gen_zdict(1), zck_read_header(1), zckdl(1)

AUTHOR
       The   zck_delta_size   utility	was   written	by   Jonathan	Dieter
       <jdieter@gmail.com>.   This  manual  page  stub	was  written  by Peter
       Pentchev	<roam@ringlet.net>.

FreeBSD	Ports 14.quarterly	 May 31, 2020		     ZCK_DELTA_SIZE(1)

Want to link to this manual page? Use this URL:
<https://man.freebsd.org/cgi/man.cgi?query=zck_delta_size&sektion=1&manpath=FreeBSD+Ports+14.3.quarterly>

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