[root@localhost ~]# hostname
localhost.localdomain
[root@localhost ~]# cat /etc/redhat-release 
CentOS release 6.6 (Final)
[root@localhost ~]# uname -r
2.6.32-504.el6.x86_64
[root@localhost ~]# hostname
localhost.localdomain
[root@localhost ~]# cat /etc/redhat-release 
CentOS release 6.6 (Final)
[root@localhost ~]# uname -r
2.6.32-504.el6.x86_64
[root@localhost ~]# php -v
PHP Warning:  PHP Startup: Unable to load dynamic library '/usr/lib64/php/modules/redis.so' - /usr/lib64/php/modules/redis.so: undefined symbol: igbinary_unserialize in Unknown on line 0
PHP 5.5.32 (cli) (built: Feb  4 2016 23:43:24) 
Copyright (c) 1997-2015 The PHP Group
Zend Engine v2.5.0, Copyright (c) 1998-2015 Zend Technologies
    with Zend OPcache v7.0.6-dev, Copyright (c) 1999-2015, by Zend Technologies
    with Xdebug v2.3.2, Copyright (c) 2002-2015, by Derick Rethans
[root@localhost ~]# mysql -V
mysql  Ver 14.14 Distrib 5.5.48, for Linux (x86_64) using readline 5.1
[root@localhost ~]# df -h
Filesystem            Size  Used Avail Use% Mounted on
/dev/mapper/VolGroup-LogVol00
                       29G   11G   16G  41% /
tmpfs                 499M     0  499M   0% /dev/shm
/dev/sda1             190M   27M  153M  15% /boot
[root@localhost ~]# du -sh
69M .
[root@localhost ~]# uname -a
Linux localhost.localdomain 2.6.32-504.el6.x86_64 #1 SMP Wed Oct 15 04:27:16 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
[root@localhost ~]# file /bin/ls
/bin/ls: ELF 64-bit LSB executable, x86-64, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.18, stripped
[root@localhost ~]# cat /proc/version
Linux version 2.6.32-504.el6.x86_64 (mockbuild@c6b9.bsys.dev.centos.org) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-11) (GCC) ) #1 SMP Wed Oct 15 04:27:16 UTC 2014
[root@localhost ~]# lsb_release -a
LSB Version:    :base-4.0-amd64:base-4.0-noarch:core-4.0-amd64:core-4.0-noarch:graphics-4.0-amd64:graphics-4.0-noarch:printing-4.0-amd64:printing-4.0-noarch
Distributor ID: CentOS
Description:    CentOS release 6.6 (Final)
Release:    6.6
Codename:   Final