grep version 2.20 (and later) receive: grep: unrecognized option '--mmap'

Solution Verified - Updated -

Issue

  • grep --mmap or zfgrep --mmap receive following error message after updating grep to version 2.20 (or later)

    $ grep --mmap string /dev/null
    grep: unrecognized option '--mmap'
    Usage: grep [OPTION]... PATTERN [FILE]...
    Try 'grep --help' for more information.
    

Environment

  • Red Hat Enterprise Linux (RHEL) 6
  • Red Hat Enterprise Linux (RHEL) 7

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.

Current Customers and Partners

Log in for full access

Log In
Close

Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.