The operating system used on the Lengau cluster is CentOS 7.

To find the exact version — e.g., to check compatibility with software, etc. — you can run one of the following commands in the shell. Shown here with the output from the current system:

lsb_release -d
Description:	CentOS Linux release 7.3.1611 (Core) 

cat /etc/centos-release
CentOS Linux release 7.3.1611 (Core) 

rpm -q centos-release
centos-release-7-3.1611.el7.centos.x86_64

So we are currently running CentOS version 7.3 patch level 1611.

• How to check CentOS version
• 5 Ways to Check CentOS Version