Skip site navigation (1)Skip section navigation (2)

FreeBSD Manual Pages

  
 
  

home | help
ZDIFF(1)			 User Commands			      ZDIFF(1)

NAME
       zdiff - decompress and compare two files	line by	line

SYNOPSIS
       zdiff [options] file1 [file2]

DESCRIPTION
       zdiff compares two files	and, if	they differ, writes to standard	output
       the  differences	 line  by  line.  A hyphen '-' used as a file argument
       means standard input. If	any file given is compressed, its decompressed
       content is used.	 zdiff is a front end to the program diff and has  the
       limitation  that	 messages  from	diff refer to temporary	file names in-
       stead of	those specified.

       'zdiff -v -V' prints the	version	of the diff program used.

       The formats supported are bzip2,	gzip, lzip, xz,	and zstd.

       zdiff compares file1 to file2. The standard input is used only if file1
       or file2	refers to standard input. If file2 is omitted zdiff  tries  to
       compare	file1  with  the  corresponding	uncompressed file (if file1 is
       compressed), and	then with the corresponding compressed	files  of  the
       remaining formats until one is found.

       Exit status is 0	if inputs are identical, 1 if different, 2 if trouble.
       Some options only work if the diff program used supports	them.

OPTIONS
       -h, --help
	      display this help	and exit

       -V, --version
	      output version information and exit

       -a, --text
	      treat all	files as text

       -b, --ignore-space-change
	      ignore changes in	the amount of white space

       -B, --ignore-blank-lines
	      ignore changes whose lines are all blank

       -c     use the context output format

       -C, --context=<n>
	      same as -c but use <n> lines of context

       -d, --minimal
	      try hard to find a smaller set of	changes

       -E, --ignore-tab-expansion
	      ignore changes due to tab	expansion

       -i, --ignore-case
	      ignore case differences

       -M, --format=<list>
	      process only the formats in <list>

       -N, --no-rcfile
	      don't read runtime configuration file

       -O, --force-format=[<f1>][,<f2>]
	      force one	or both	input formats

       -p, --show-c-function
	      show which C function each change	is in

       -q, --brief
	      output only whether files	differ

       -s, --report-identical-files
	      report when two files are	identical

       -t, --expand-tabs
	      expand tabs to spaces in output

       -T, --initial-tab
	      make tabs	line up	by prepending a	tab

       -u     use the unified output format

       -U, --unified=<n>
	      same as -u but use <n> lines of context

       -v, --verbose
	      verbose mode (for	--version)

       -w, --ignore-all-space
	      ignore all white space

       -W, --width=<n>
	      output at	most <n> print columns (for -y)

       -y, --side-by-side
	      output in	two columns

       --bz2=<command>
	      set compressor and options for bzip2 format

       --gz=<command>
	      set compressor and options for gzip format

       --lz=<command>
	      set compressor and options for lzip format

       --xz=<command>
	      set compressor and options for xz	format

       --zst=<command>
	      set compressor and options for zstd format

       Valid  formats  for  options '-M' and '-O' are 'bz2', 'gz', 'lz', 'xz',
       'zst', and 'un' for uncompressed.

REPORTING BUGS
       Report bugs to zutils-bug@nongnu.org
       Zutils home page: http://www.nongnu.org/zutils/zutils.html

COPYRIGHT
       Copyright (C) 2024 Antonio Diaz Diaz.  License GPLv2+: GNU GPL  version
       2 or later <http://gnu.org/licenses/gpl.html>
       This  is	 free  software:  you  are free	to change and redistribute it.
       There is	NO WARRANTY, to	the extent permitted by	law.

SEE ALSO
       The full	documentation for zdiff	is maintained as a Texinfo manual.  If
       the info	and zdiff programs are properly	installed at  your  site,  the
       command

	      info zutils

       should give you access to the complete manual.

zutils 1.13			 January 2024			      ZDIFF(1)

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

home | help