add library

shell/library.sh

@@ -577,6 +577,104 @@ func_ipv4_addr(){
 	echo $ips
 }
 
+# Get OS information
+get_os_name () {
+
+    centos_flavor="centos"
+
+    # Use lsb_release if possible
+    if command -V lsb_release > /dev/null 2>&1; then
+        os=`lsb_release -is | tr '[:upper:]' '[:lower:]'`
+        codename=`lsb_release -cs | tr '[:upper:]' '[:lower:]'`
+        release=`lsb_release -rs | sed 's/\..*$//'`
+
+        if [ "$os" = "redhatenterpriseserver" -o "$os" = "oracleserver" ]; then
+            os="centos"
+            centos_flavor="red hat linux"
+        fi
+    # Otherwise it's getting a little bit more tricky
+    else
+        if ! ls /etc/*-release > /dev/null 2>&1; then
+            os=`uname -s | \
+                tr '[:upper:]' '[:lower:]'`
+        else
+            os=`cat /etc/*-release | grep '^ID=' | \
+                sed 's/^ID=["]*\([a-zA-Z]*\).*$/\1/' | \
+                tr '[:upper:]' '[:lower:]'`
+
+            if [ -z "$os" ]; then
+                if grep -i "oracle linux" /etc/*-release > /dev/null 2>&1 || \
+                   grep -i "red hat" /etc/*-release > /dev/null 2>&1; then
+                    os="rhel"
+                else
+                    if grep -i "centos" /etc/*-release > /dev/null 2>&1; then
+                        os="centos"
+                    else
+                        os="linux"
+                    fi
+                fi
+            fi
+        fi
+
+        case "$os" in
+            ubuntu)
+                codename=`cat /etc/*-release | grep '^DISTRIB_CODENAME' | \
+                          sed 's/^[^=]*=\([^=]*\)/\1/' | \
+                          tr '[:upper:]' '[:lower:]'`
+                ;;
+            debian)
+                codename=`cat /etc/*-release | grep '^VERSION=' | \
+                          sed 's/.*(\(.*\)).*/\1/' | \
+                          tr '[:upper:]' '[:lower:]'`
+                ;;
+            centos)
+                codename=`cat /etc/*-release | grep -i 'centos.*(' | \
+                          sed 's/.*(\(.*\)).*/\1/' | head -1 | \
+                          tr '[:upper:]' '[:lower:]'`
+                # For CentOS grab release
+                release=`cat /etc/*-release | grep -i 'centos.*[0-9]' | \
+                         sed 's/^[^0-9]*\([0-9][0-9]*\).*$/\1/' | head -1`
+                ;;
+            rhel|ol)
+                codename=`cat /etc/*-release | grep -i 'red hat.*(' | \
+                          sed 's/.*(\(.*\)).*/\1/' | head -1 | \
+                          tr '[:upper:]' '[:lower:]'`
+                # For Red Hat also grab release
+                release=`cat /etc/*-release | grep -i 'red hat.*[0-9]' | \
+                         sed 's/^[^0-9]*\([0-9][0-9]*\).*$/\1/' | head -1`
+
+                if [ -z "$release" ]; then
+                    release=`cat /etc/*-release | grep -i '^VERSION_ID=' | \
+                             sed 's/^[^0-9]*\([0-9][0-9]*\).*$/\1/' | head -1`
+                fi
+
+                os="centos"
+                centos_flavor="red hat linux"
+                ;;
+            amzn)
+                codename="amazon-linux-ami"
+                release_amzn=`cat /etc/*-release | grep -i 'amazon.*[0-9]' | \
+                              sed 's/^[^0-9]*\([0-9][0-9]*\.[0-9][0-9]*\).*$/\1/' | \
+                              head -1`
+
+                amzn=`rpm --eval "%{amzn}"`
+                if [ ${amzn} == 1 ]; then
+                    release="latest"
+                else
+                    release=${amzn}
+                fi
+
+                os="amzn"
+                centos_flavor="amazon linux"
+                ;;
+            *)
+                codename=""
+                release=""
+                ;;
+        esac
+    fi
+}
+
 
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