xzdiff:tldr:68489

The command "xzdiff --brief ${filename1} ${filename2}" is used to compare two files that are compressed using the xz compression algorithm.

Here is a breakdown of the command:

• "xzdiff" is the name of the command-line tool used for comparing compressed files. It is similar to the "diff" command used for comparing uncompressed files.
• "--brief" is an option/flag used with the "xzdiff" command to specify that only brief output should be displayed. It means the command will only provide a summary of the differences found, rather than showing a detailed line-by-line comparison.
• "${filename1}" and "${filename2}" are placeholders for the actual names of the two files you want to compare. You need to replace them with the specific file names or paths.

To use this command, replace "${filename1}" and "${filename2}" with the actual names of the files you want to compare. The command will then compare these two xz-compressed files and provide a brief summary of the differences found.