zdiff (zutils) 1.8
January 2019
Aliases: zcmp(1), zcmp(1), zcmp(1), zcmp(1), zcmp(1), zcmp(1), zcmp(1), zcmp(1), zcmp(1), zcmp(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 differences 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.
Exit status is 0 if inputs are identical, 1 if different, 2 if trouble.
The formats supported are bzip2, gzip, lzip and xz.
Zdiff compares file1 to file2. If file2 is omitted zdiff tries the following:
| 1. If file1 is compressed, compares its decompressed contents with the corresponding 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. |
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
COPYRIGHT
Copyright © 2019 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.
This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law.
