To check which version of Red Hat Enterprise Linux (RHEL) is currently installed:

  • Log into your server as root via Eterm or PuTTY
  • Run the following command:
cat /etc/*release*

You will see output similar to the following:

[root@testnode /]# cat /etc/*release*
 NAME="Red Hat Enterprise Linux Server"
 VERSION="7.4 (Maipo)"
 ID="rhel"
 ID_LIKE="fedora"
 VARIANT="Server"
 VARIANT_ID="server"
 VERSION_ID="7.4"
 PRETTY_NAME="Red Hat Enterprise Linux"
 ANSI_COLOR="0;31"
 CPE_NAME="cpe:/o:redhat:enterprise_linux:7.4:GA:server"
 HOME_URL="https://www.redhat.com/"
 BUG_REPORT_URL="https://bugzilla.redhat.com/"

REDHAT_BUGZILLA_PRODUCT="Red Hat Enterprise Linux 7"
 REDHAT_BUGZILLA_PRODUCT_VERSION=7.4
 REDHAT_SUPPORT_PRODUCT="Red Hat Enterprise Linux"
 REDHAT_SUPPORT_PRODUCT_VERSION="7.4"
 NAME="Red Hat Enterprise Linux Server"
 VERSION="7.3 (Maipo)"
 ID="rhel"
 ID_LIKE="fedora"
 VERSION_ID="7.3"
 PRETTY_NAME="Red Hat Enterprise Linux"
 ANSI_COLOR="0;31"
 CPE_NAME="cpe:/o:redhat:enterprise_linux:7.3:GA:server"
 HOME_URL="https://www.redhat.com/"
 BUG_REPORT_URL="https://bugzilla.redhat.com/"

REDHAT_BUGZILLA_PRODUCT="Red Hat Enterprise Linux 7"
 REDHAT_BUGZILLA_PRODUCT_VERSION=7.3
 REDHAT_SUPPORT_PRODUCT="Red Hat Enterprise Linux"
 REDHAT_SUPPORT_PRODUCT_VERSION="7.3"
 Red Hat Enterprise Linux Server release 7.4 (Maipo)
 Red Hat Enterprise Linux Server release 7.4 (Maipo)
 cpe:/o:redhat:enterprise_linux:7.4:ga:server
 [root@testnode /]#