| .\" SPDX-License-Identifier: 0BSD | |
| .\" | |
| .\" Authors: Lasse Collin | |
| .\" Jia Tan | |
| .\" | |
| .\" (Note that this file is not based on gzip's zdiff.1.) | |
| .\" | |
| .TH XZDIFF 1 "2024-02-13" "Tukaani" "XZ Utils" | |
| .SH NAME | |
| xzcmp, xzdiff, lzcmp, lzdiff \- compare compressed files | |
| . | |
| .SH SYNOPSIS | |
| .B xzcmp | |
| .RI [ option... ] | |
| .I file1 | |
| .RI [ file2 ] | |
| .br | |
| .B xzdiff | |
| \&... | |
| .br | |
| .B lzcmp | |
| \&... | |
| .br | |
| .B lzdiff | |
| \&... | |
| . | |
| .SH DESCRIPTION | |
| .B xzcmp | |
| and | |
| .B xzdiff | |
| compare uncompressed contents of two files. | |
| Uncompressed data and options are passed to | |
| .BR cmp (1) | |
| or | |
| .BR diff (1) | |
| unless | |
| .B \-\-help | |
| or | |
| .B \-\-version | |
| is specified. | |
| .PP | |
| If both | |
| .I file1 | |
| and | |
| .I file2 | |
| are specified, they can be uncompressed files or files in formats that | |
| .BR xz (1), | |
| .BR gzip (1), | |
| .BR bzip2 (1), | |
| .BR lzop (1), | |
| .BR zstd (1), | |
| or | |
| .BR lz4 (1) | |
| can decompress. | |
| The required decompression commands are determined from | |
| the filename suffixes of | |
| .I file1 | |
| and | |
| .IR file2 . | |
| A file with an unknown suffix is assumed to be either uncompressed | |
| or in a format that | |
| .BR xz (1) | |
| can decompress. | |
| .PP | |
| If only one filename is provided, | |
| .I file1 | |
| must have a suffix of a supported compression format and the name for | |
| .I file2 | |
| is assumed to be | |
| .I file1 | |
| with the compression format suffix removed. | |
| .PP | |
| The commands | |
| .B lzcmp | |
| and | |
| .B lzdiff | |
| are provided for backward compatibility with LZMA Utils. | |
| . | |
| .SH EXIT STATUS | |
| If a decompression error occurs, the exit status is | |
| .BR 2 . | |
| Otherwise the exit status of | |
| .BR cmp (1) | |
| or | |
| .BR diff (1) | |
| is used. | |
| . | |
| .SH "SEE ALSO" | |
| .BR cmp (1), | |
| .BR diff (1), | |
| .BR xz (1), | |
| .BR gzip (1), | |
| .BR bzip2 (1), | |
| .BR lzop (1), | |
| .BR zstd (1), | |
| .BR lz4 (1) | |