SIMPLE SOLUTIONS

ZDIFF(1) - man page online | user commands

Decompress and compare two files line by line.

Chapter
May 2015
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 ("-" means standard input), and if they differ, shows the differ‐ ences line by line. If any given file is compressed, its decompressed content is used. Zdiff is a front end to the diff program and has the limitation that messages from diff refer to temporary filenames instead of those specified. The supported formats are bzip2, gzip, lzip and xz. Compares <file1> to <file2>. If <file2> is omitted zdiff tries the following: 1. If <file1> is compressed, compares its decompressed contents with the corre‐ sponding uncompressed file (the name of <file1> with the extension removed). 2. If <file1> is uncompressed, compares it with the decompressed contents of <file1>.[lz|bz2|gz|xz] (the first one that is found). 3. If no suitable file is found, compares <file1> with data read from standard input. Exit status is 0 if inputs are identical, 1 if different, 2 if trouble.
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 in file contents -M, --format=<list> process only the formats in <list> -N, --no-rcfile don't read runtime configuration file -O, --force-format=[<f1>][,<f2>] force given formats (bz2, gz, lz, xz) -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 -w, --ignore-all-space ignore all white space --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
REPORTING BUGS Report bugs to @nongnu.org Zutils home page: http://www.nongnu.org/zutils/zutils.html
zdiff (zutils) 1.4 May 2015 ZDIFF(1)
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zdiff(1) referred by xzdiff(1) | zforce(1) | zmore(1) | znew(1)
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