how to find out RHEL or Centos from makefile

[anoopbindal]

Hi
I am looking for some command which can tell if system is RHEL or Centos. Like getconf LONG_BIT gives whether system is 32 bit or 64 bit.
I need it to change the steps in makefile for c code.

Thanks

[TrevorH]

Do you to tell apart RHEL from CentOS or to tell if the system you are building on is either one?

[anoopbindal]

I want to do different things for RHEL and Centos. So want to know if current OS is CentOS or Rhel.
i know there is a file /etc/centos-release but is there anything cleaner then checking for this file.
I want to to tell apart RHEL from CentOS.

[avij]

Checking /etc/os-release might be marginally cleaner.

[TrevorH]

Why would you need to tell them apart? They are to all intents and purposes (and by design) identical!

[schotty]

Checking /etc/os-release might be marginally cleaner.

Thats a good bet for this. Oracle reports as RHEL though.

CentOS Workstation

Code: Select all

[andrew@big-red ~]$ cat /etc/redhat-release 
CentOS Linux release 7.0.1406 (Core) 
[andrew@big-red ~]$ 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/"

[andrew@big-red ~]$ 

Oracle VM

Code: Select all

[andrew@vm0 ~]$ cat /etc/redhat-release 
Red Hat Enterprise Linux Server release 6.5 (Santiago)
[andrew@vm0 ~]$ cat /etc/os-release
cat: /etc/os-release: No such file or directory
[andrew@vm0 ~]$