From e103c4892bacb7af48846a53b7036f2bdd28431c Mon Sep 17 00:00:00 2001
From: David Schroeder <david@schroedercity.com>
Date: Sun, 3 Mar 2019 23:13:46 -0600
Subject: [PATCH] Create get-os.sh

---
 get-os.sh | 67 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100755 get-os.sh

diff --git a/get-os.sh b/get-os.sh
new file mode 100755
index 0000000..731ab3e
--- /dev/null
+++ b/get-os.sh
@@ -0,0 +1,67 @@
+#!/usr/bin/env bash
+
+redhat_derivative () {
+
+    local FILE=/etc/redhat-release
+
+    grep -i 'red.*hat.*enterprise.*linux' $FILE 2>&1 > /dev/null && { echo  DERIVATIVE=rhel; return; }
+    grep -i 'red.*hat.*linux' $FILE 2>&1 > /dev/null && { echo DERIVATIVE=rh; return; }
+    grep -i 'cern.*e.*linux' $FILE 2>&1 > /dev/null && { echo DERIVATIVE=cel; return; }
+    grep -i 'scientific linux cern' $FILE 2>&1 > /dev/null && { echo DERIVATIVE=slc; return; }
+    grep -i 'centos' $FILE 2>&1 > /dev/null && { echo DERIVATIVE=centos; return; }
+
+    echo DERIVATIVE=unknown
+}
+
+detect_os () {
+	#local -n OSinfo="$1" || return 1
+	declare -A OSinfo
+	OSinfo[MACH]=`uname -m`
+	if [ -f /etc/redhat-release ] ; then
+		echo DISTRIBUTION=redhat
+	    local FILE=/etc/redhat-release
+	    grep -i 'red.*hat.*enterprise.*linux' $FILE 2>&1 > /dev/null && { echo  DERIVATIVE=rhel; return; }
+	    grep -i 'red.*hat.*linux' $FILE 2>&1 > /dev/null && { echo DERIVATIVE=rh; return; }
+	    grep -i 'cern.*e.*linux' $FILE 2>&1 > /dev/null && { echo DERIVATIVE=cel; return; }
+	    grep -i 'scientific linux cern' $FILE 2>&1 > /dev/null && { echo DERIVATIVE=slc; return; }
+	    grep -i 'centos' $FILE 2>&1 > /dev/null && { echo DERIVATIVE=centos; return; }
+		#echo DERIVATIVE=unknown
+        echo RELEASE=`tr -d 'a-zA-Z [](){}' < /etc/redhat-release`
+    elif [ -s /etc/slackware-version ]; then
+        echo DISTRIBUTION="slackware"
+	elif [ -f /etc/SUSE-release ] ; then
+        # TODO - not tested
+        echo DISTRIBUTION=suse
+ 		echo PSUEDONAME=`cat /etc/SUSE-release | tr "\n" ' '| sed s/VERSION.*//`
+ 		echo REV=`cat /etc/SUSE-release | tr "\n" ' ' | sed s/.*=\ //`
+        echo VERSION=`cat /etc/SuSE-release | grep 'VERSION' | sed  -e 's#[^0-9]##g'`
+	elif [ -f /etc/mandrake-release ] ; then
+        # TODO - not tested
+        echo DISTRIBUTION=mandrake
+ 		echo PSUEDONAME=`cat /etc/mandrake-release | sed s/.*\(// | sed s/\)//`
+ 		echo REV=`cat /etc/mandrake-release | sed s/.*release\ // | sed s/\ .*//`
+        echo FAMILY=rh
+	elif [ -f /etc/debian_version ] ; then
+        OSinfo[DISTRIBUTION]=debian
+	    if which lsb_release 2>&1 > /dev/null ; then
+	        OSinfo[DERIVATIVE]=`lsb_release --id --short 2> /dev/null`
+	        OSinfo[RELEASE]=`lsb_release --release --short 2> /dev/null`
+	        OSinfo[CODENAME]=`lsb_release --codename --short 2> /dev/null`
+	    else
+	        OSinfo[DERIVATIVE]=unknown
+	        OSinfo[RELEASE]=`cat /etc/debian_version`
+	        OSinfo[CODENAME]=unknown
+	    fi
+    elif [ -f /etc/UnitedLinux-release ]; then
+        echo DISTRIBUTION="united"
+        echo VERSION=`cat /etc/UnitedLinux-release`
+    elif [ -r /etc/init.d/functions.sh ]; then
+        # TODO - not tested
+        source /etc/init.d/functions.sh
+        [ zz`type -t ebegin 2>/dev/null` == "zzfunction" ] && echo DISTRIBUTION="gentoo"
+	fi
+	#declare -p OSinfo
+	echo "${OSinfo[@]}"
+}
+
+detect_os
\ No newline at end of file