Cómo saber qué versión de glibc tenemos instalada

Siempre se me olvida la lbrería que me indica qué versión de glibc tengo.
Con ejecutar "/lib/libc.so.6" como usuario sin privilegios nos va a indicar qué versión de glibc tenemos en el sistema.

En mi caso la salida sería así:

jose@trinity jose $ "/lib/libc.so.6"
GNU C Library 20040808 release version 2.3.4, by Roland McGrath et al.
Copyright (C) 2004 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.
Compiled by GNU CC version 3.3.4 20040623 (Gentoo Linux 3.3.4-r1, ssp-3.3.2-2, pie-8.7.6).
Compiled on a Linux 2.4.21 system on 2004-10-24.
Available extensions:
GNU libio by Per Bothner
crypt add-on version 2.1 by Michael Glad and others
linuxthreads-0.10 by Xavier Leroy
BIND-8.2.3-T5B
libthread_db work sponsored by Alpha Processor Inc
NIS(YP)/NIS+ NSS modules 0.19 by Thorsten Kukuk
Thread-local storage support included.
For bug reporting instructions, please see:
.