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Determine the Linux Distribution

There are chances that you have to develop scripts which need to do different things for the individual Linux distributions and their major and minor version. The file /etc/os-release is the place to go.

Execute the command:

source /etc/os-release

in your bash script and you will have the variables set which matter.

Here is a collection of the various /etc/os-release flavors I'm working with

Amazon Linux

NAME="Amazon Linux AMI"
VERSION="2016.03"
ID="amzn"
ID_LIKE="rhel fedora"
VERSION_ID="2016.03"
PRETTY_NAME="Amazon Linux AMI 2016.03"
ANSI_COLOR="0;33"
CPE_NAME="cpe:/o:amazon:linux:2016.03:ga"
HOME_URL="http://aws.amazon.com/amazon-linux-ami/"

Oracle Linux

Oracle Linux 6.8

NAME="Oracle Linux Server" 
VERSION="6.8"
ID="ol"
VERSION_ID="6.8"
PRETTY_NAME="Oracle Linux Server 6.8"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:oracle:linux:6:8:server"
HOME_URL="https://linux.oracle.com/"
BUG_REPORT_URL="https://bugzilla.oracle.com/"

ORACLE_BUGZILLA_PRODUCT="Oracle Linux 6"
ORACLE_BUGZILLA_PRODUCT_VERSION=6.8
ORACLE_SUPPORT_PRODUCT="Oracle Linux"
ORACLE_SUPPORT_PRODUCT_VERSION=6.8

Oracle Linux 7.1

NAME="Oracle Linux Server"
VERSION="7.1"
ID="ol"
VERSION_ID="7.1"
PRETTY_NAME="Oracle Linux Server 7.1"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:oracle:linux:7:1"
HOME_URL="https://linux.oracle.com/"
BUG_REPORT_URL="https://bugzilla.oracle.com/"

ORACLE_BUGZILLA_PRODUCT="Oracle Linux 7"
ORACLE_BUGZILLA_PRODUCT_VERSION=7.1
ORACLE_SUPPORT_PRODUCT="Oracle Linux"
ORACLE_SUPPORT_PRODUCT_VERSION=7.1

Oracle Linux 7.3

NAME="Oracle Linux Server"
VERSION="7.3"
ID="ol"
VERSION_ID="7.3"
PRETTY_NAME="Oracle Linux Server 7.3"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:oracle:linux:7:3:server"
HOME_URL="https://linux.oracle.com/"
BUG_REPORT_URL="https://bugzilla.oracle.com/"

ORACLE_BUGZILLA_PRODUCT="Oracle Linux 7"
ORACLE_BUGZILLA_PRODUCT_VERSION=7.3
ORACLE_SUPPORT_PRODUCT="Oracle Linux"
ORACLE_SUPPORT_PRODUCT_VERSION=7.3

Oracle Linux 7.4

NAME="Oracle Linux Server"
VERSION="7.4"
ID="ol"
VERSION_ID="7.4"
PRETTY_NAME="Oracle Linux Server 7.4"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:oracle:linux:7:4:server"
HOME_URL="https://linux.oracle.com/"
BUG_REPORT_URL="https://bugzilla.oracle.com/"

ORACLE_BUGZILLA_PRODUCT="Oracle Linux 7"
ORACLE_BUGZILLA_PRODUCT_VERSION=7.4
ORACLE_SUPPORT_PRODUCT="Oracle Linux"
ORACLE_SUPPORT_PRODUCT_VERSION=7.4

 

Red Hat

Red Hat Enterprise Linux Server 7.2

NAME="Red Hat Enterprise Linux Server"
VERSION="7.2 (Maipo)"
ID="rhel"
ID_LIKE="fedora"
VERSION_ID="7.2"
PRETTY_NAME="Red Hat Enterprise Linux Server 7.2 (Maipo)"
ANSI_COLOR="0;31"
CPE_NAME="cpe:/o:redhat:enterprise_linux:7.2: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=7.2
REDHAT_SUPPORT_PRODUCT="Red Hat Enterprise Linux"
REDHAT_SUPPORT_PRODUCT_VERSION="7.2"

Red Hat Enterprise Linux Server 7.3

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 Server 7.3 (Maipo)"
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"

 

SUSE SLES

SUSE Linux Enterprise Server 11 SP3

This distribution doesn't have an /etc/os-release file. This version has a file /etc/SuSE-release.

SUSE Linux Enterprise Server 11 (x86_64)
VERSION = 11
PATCHLEVEL = 3

SLES for SAP 12 SP1

NAME="SLES_SAP"
VERSION="12-SP1"
VERSION_ID="12.1.0.1"
PRETTY_NAME="SUSE Linux Enterprise Server for SAP Applications 12 SP1"
ID="sles_sap"
ANSI_COLOR="0;32"
CPE_NAME="cpe:/o:suse:sles_sap:12:sp1"

SLES 12 SP2

NAME="SLES"
VERSION="12-SP2"
VERSION_ID="12.2"
PRETTY_NAME="SUSE Linux Enterprise Server 12 SP2"
ID="sles"
ANSI_COLOR="0;32"
CPE_NAME="cpe:/o:suse:sles:12:sp2" 

SLES 12 SP3

NAME="SLES"
VERSION="12-SP3"
VERSION_ID="12.3"
PRETTY_NAME="SUSE Linux Enterprise Server 12 SP3"
ID="sles"
ANSI_COLOR="0;32"
CPE_NAME="cpe:/o:suse:sles:12:sp3"

 



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