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How to Check the glibc Version on CentOS

Posted on by J. Mays
Reading Time: < 1 minute
Pre-Flight Check
  • These instructions are intended specifically for checking the installed version of glibc.
  • I’ll be working from a Liquid Web Core Managed CentOS 6 and CentOS 7 server, and I’ll be logged in as root.

Using ldd

ldd --version

This should return a result similar to:

ldd (GNU libc) 2.17
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 2.17 is installed.

Using yum

yum list glibc

This should return a result similar to:

Loaded plugins: fastestmirror, langpacks, priorities
Loading mirror speeds from cached hostfile
3 packages excluded due to repository priority protections
Installed Packages
glibc.x86_64        2.17-55.el7_0.3          @system-updates-released
Available Packages
glibc.i686          2.17-55.el7_0.3          system-updates-released

In this case, 2.17-55.el7_0.3 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!

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