zfgrep
Matches fixed strings in possibly compressed files.
TLDR
Search for an exact string in a file
$ zfgrep [search_string] [path/to/file]
Count the number of lines that match the given string in a file
$ zfgrep --count [search_string] [path/to/file]
Show the line number in the file along with the matching lines
$ zfgrep --line-number [search_string] [path/to/file]
Display all lines except those that contain the search string
$ zfgrep --invert-match [search_string] [path/to/file]
List only filenames whose content matches the search string at least once
$ zfgrep --files-with-matches [search_string] [path/to/file1 path/to/file2 ...]
Help
Usage: /usr/bin/zgrep [OPTION]... [-e] PATTERN [FILE]...
Look for instances of PATTERN in the input FILEs, using their
uncompressed contents if they are compressed.
OPTIONs are the same as for 'grep', except that the following 'grep'
options are not supported: --dereference-recursive (-R), --directories (-d),
--exclude, --exclude-from, --exclude-dir, --include, --null (-Z),
--null-data (-z), and --recursive (-r).
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