speedgrep 1.3.5

a simple grep tool
Documentation 
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QUIETGREP(1)                 User Commands               QUIETGREP(1)

NAME
    quietgrep - ultra-fast literal search with no output

SYNOPSIS
    quietgrep <file> <pattern>

DESCRIPTION
    quietgrep performs a literal byte-level search on a file and
    produces no output. It exits with status 0 if the pattern is
    found, or 1 if not.

    quietgrep is designed for extremely fast existence checks in
    large files. Because it performs no printing, formatting, or
    allocation, it is significantly faster than traditional grep
    tools when only the presence of a pattern matters.

ARGUMENTS
    <file>
        Path to the file to search.

    <pattern>
        Literal byte sequence to search for.

EXIT STATUS
    0   The pattern was found.
    1   The pattern was not found.

PERFORMANCE NOTES
    quietgrep uses a tight, branch-predictable byte-scanning loop.
    Since it performs no output, it is extremly efficient for
    checking if a log file is even worth using a different grep
    on.

EXAMPLES
    Check if a log contains an error:
        quietgrep system.log ERROR

    Use quietgrep as a fast gate before running speedgrep:
        quietgrep logs.txt ERROR && speedgrep logs.txt ERROR

LIMITATIONS
    quietgrep performs literal byte matching only. It does not
    support regular expressions, Unicode-aware searching, or
    multi-file input.

AUTHORS
    Written by G0o53.
    Licensed under MPL-2.0

SEE ALSO
    speedgrep(1), grep(1), rg(1)