Added support for redhat based distros

Script now autodetects redhat based distributions and download
the correct file. Can also install using the autoinstall option.

NOTE! Not as well tested as Debian based systems, since I don't
      run any redhat distro myself. Please provide feedback if
      you have issues.

plexupdate.sh

@@ -34,7 +34,8 @@
 #               modify this script.
 #  2.4          Added support for the public versions of PMS
 #  2.5          Supports autoinstall if root and given the option
-
+#  2.6		Support for redhat derived distributions
+#
 #################################################################
 # Set these two to what you need, or create a .plexupdate file
 # in your home directory with these two (avoids changing this)
@@ -95,6 +96,15 @@ if [ "${AUTOINSTALL}" == "yes" ]; then
 	fi
 fi
 
+# Detect if we're running on redhat instead of ubuntu
+REDHAT=no;
+PKGEXT='.deb'
+
+if [ -f /etc/redhat-release ]; then
+	REDHAT=yes;
+	PKGEXT='.rpm'
+fi
+
 # Useful functions
 rawurlencode() {
 	local string="${1}"
@@ -179,7 +189,8 @@ fi
 
 # Extract the URL for our release
 echo -n "Finding download URL for ${RELEASE}..."
-DOWNLOAD=$(wget --load-cookies /tmp/kaka --save-cookies /tmp/kaka --keep-session-cookies "${URL_DOWNLOAD}" -O - 2>/dev/null | grep ".deb" | grep "${RELEASE}" | sed "s/.*href=\"\([^\"]*\.deb\)\"[^>]*>${RELEASE}.*/\1/")
+
+DOWNLOAD=$(wget --load-cookies /tmp/kaka --save-cookies /tmp/kaka --keep-session-cookies "${URL_DOWNLOAD}" -O - 2>/dev/null | grep "${PKGEXT}" | grep -m 1 "${RELEASE}" | sed "s/.*href=\"\([^\"]*\\${PKGEXT}\)\"[^>]*>${RELEASE}.*/\1/" )
 echo -e "OK"
 
 if [ "${DOWNLOAD}" == "" ]; then
@@ -208,7 +219,11 @@ fi
 echo "OK"
 
 if [ "${AUTOINSTALL}" == "yes" ]; then
-	dpkg -i "${FILENAME}"
+	if [ "${REDHAT}" == "yes" ]; then
+		rpm -i "${FILENAME}"
+	else
+		dpkg -i "${FILENAME}"
+	fi
 fi
 
 exit 0