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 uncompressed 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 compressors are bzip2, gzip, lzip
and xz.
Compares <file1> to <file2>. If <file2> is omitted zdiff tries
the following: If <file1> is compressed, compares <file1> to the
file with the corresponding decompressed file name (removes the extension from
<file1>). If <file1> is not compressed, compares <file1> to
the uncompressed contents of <file1>.[bz2|gz|lz|xz] (the first one that
is found). If no suitable file is found, compares <file1> to 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
- -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
Numbers may be followed by a multiplier: k = kB = 10^3 = 1000, Ki = KiB = 2^10 =
1024, M = 10^6, Mi = 2^20, G = 10^9, Gi = 2^30, etc...
REPORTING BUGS¶
Report bugs to zutils-bug@nongnu.org
Zutils home page:
http://www.nongnu.org/zutils/zutils.html
COPYRIGHT¶
Copyright © 2011 Antonio Diaz Diaz. License GPLv3+: GNU GPL version 3 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.