How to Check the glibc Version In Fedora

Posted on February 12, 2015 by J. Mays

Category: Technical Support | Tags: Fedora, Fedora 20, Fedora 21, Glibc, ldd, Linux, Security

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Pre-Flight Check

These instructions are intended specifically for checking the installed version of glibc.
I’ll be working from a Liquid Web Self Managed Fedora 20 and Fedora 21 server, and I’ll be logged in as root.

Using ldd

ldd --version

This should return a result similar to (though your version may vary):

ldd (GNU libc) 2.20 Copyright (C) 2012 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Written by Roland McGrath and Ulrich Drepper.

In this case, version 2.20 is installed.

Using yum

yum list glibc

This should return a result similar to:

Installed Packages glibc.x86_64 2.20-5.fc21 @anaconda Available Packages glibc.i686 2.20-5.fc21 fedora

In this case, 2.20-5.fc21 is the package installed.

About the Author: J. Mays

As a previous contributor, JMays shares his insight with our Knowledge Base center. In our Knowledge Base, you'll be able to find how-to articles on Ubuntu, CentOS, Fedora and much more!