bzdiff

Compare two bzip2 compressed files

$ bzdiff [file1.bz2] [file2.bz2]

$ bzdiff [file.bz2]

$ bzdiff -u [file1.bz2] [file2.bz2]

$ bzcmp [file1.bz2] [file2.bz2]

bzdiff [diffoptions] file1 [file2_]
bzcmp [cmpoptions] file1 [file2_]

bzdiff compares bzip2 compressed files by decompressing them and passing the content to diff. All options are passed directly to the underlying diff command.
bzcmp works similarly but uses cmp instead of diff for byte-by-byte comparison.

All parameters are passed directly to diff or cmp:
-u

Unified diff format

Context diff format

Ignore case differences

Ignore whitespace

Report only whether files differ

Single file

Compares file1 with file1.bz2 (uncompressed version)

Decompresses both if needed and compares

Returns the exit status from diff or cmp, preserving the comparison result.

Error messages refer to temporary filenames instead of original filenames. Files are decompressed to temporary storage during comparison.

diff(1), cmp(1), bzgrep(1), bzmore(1), bzip2(1)