#uname -acentos
#cat /proc/versionbash
# cat /etc/*release*code
# cat /etc/centos-release-upstream Derived from Red Hat Enterprise Linux 7.6 (Source) # cat /etc/os-release NAME="CentOS Linux" VERSION="7 (Core)" ID="centos" ID_LIKE="rhel fedora" VERSION_ID="7" PRETTY_NAME="CentOS Linux 7 (Core)" ANSI_COLOR="0;31" CPE_NAME="cpe:/o:centos:centos:7" HOME_URL="https://www.centos.org/" BUG_REPORT_URL="https://bugs.centos.org/" CENTOS_MANTISBT_PROJECT="CentOS-7" CENTOS_MANTISBT_PROJECT_VERSION="7" REDHAT_SUPPORT_PRODUCT="centos" REDHAT_SUPPORT_PRODUCT_VERSION="7" # cat /etc/centos-release CentOS Linux release 7.6.1810 (Core) # cat /etc/system-release CentOS Linux release 7.6.1810 (Core) # cat /etc/system-release-cpe cpe:/o:centos:centos:7