bzegrep

Search for extended regular expressions (supporting ?, +, {}, () and |) in a compressed file (case-sensitive)

$ bzegrep "[search_pattern]" [path/to/file]

$ bzegrep --ignore-case "[search_pattern]" [path/to/file]

$ bzegrep --invert-match "[search_pattern]" [path/to/file]

$ bzegrep --with-filename --line-number "[search_pattern]" [path/to/file]

$ bzegrep --only-matching "[search_pattern]" [path/to/file]

$ bzegrep --recursive "[search_pattern]" [path/to/file]

bzegrep [grep_options] pattern [file1 file2 ...]

grep_options
    Options that can be passed to the underlying grep command. These can include options for case-insensitive search (-i), displaying line numbers (-n), inverting the search (-v), and more. Consult the grep manual page for a comprehensive list.

pattern
    The regular expression pattern to search for within the bzip2-compressed files.

file1 file2 ...
    One or more bzip2-compressed files (.bz2 extension) to search within. If no files are specified, bzegrep will read from standard input, if the input is compressed with bzip2.

bzegrep is a command-line utility in Linux systems used to search for patterns within bzip2-compressed files. It's essentially a wrapper around bzcat and grep, allowing you to search through compressed data without needing to decompress it manually. bzegrep will uncompress and search the files specified in the file parameters and the output is equivalent to running grep on the uncompressed files.
This is particularly useful when dealing with large log files or other data stored in a compressed format to save disk space. Using bzegrep provides a more efficient workflow by eliminating the need for manual decompression and re-compression after searching.
When bzegrep find a line that matches the required pattern, the file name will be printed with the matching pattern in that line. It supports most of the commonly used grep options, enabling flexible and powerful searches.

The exit status is 0 if selected lines are found, and 1 if not found. If an error occurred the exit status is 2.
The exit code is the same as the grep command.

If no files are specified on the command line, bzegrep reads from the standard input. Note that due to limitations in the bzip2 file format, bzegrep might not always work correctly on concatenated bzip2 files. If you need to process such files, consider decompressing them first using bzcat.

bzcat(1), grep(1), bzip2(1), bzless(1), bzmore(1)