NAME¶

SYNOPSIS¶

DESCRIPTION¶

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.

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¶

COPYRIGHT¶