added rar installation

lch

@@ -131,6 +131,26 @@ function check()
     exit 0
 }
 
+function rarInstall()
+    if [ $(uname -m) -eq "x86_64" ]; then
+        wget https://www.rarlab.com/rar/rarlinux-x64-5.9.1.tar.gz
+        tar -zxvf rarlinux-x64-5.9.1.tar.gz
+        cd rar
+        sudo cp -v rar unrar /usr/local/bin/
+        cd ..
+        rm -r rar rarlinux-x64-5.9.1.tar.gz
+	echo "rar/unrar installed."
+    else
+    	wget https://www.rarlab.com/rar/rarlinux-5.9.1.tar.gz
+	tar -zxvf rarlinux-x64-5.9.1.tar.gz
+	cd rar
+	sudo cp -v rar unrar /usr/local/bin/
+	cd ..
+	rm -r rar rarlinux-5.9.1.tar.gz
+	echo "rar/unrar installed."
+    fi
+}
+
 function install()
 {
     echo -e "Install dependencies\n"
@@ -141,10 +161,17 @@ function install()
         exit 0
     fi
     
+    if [ -e "$(command -v rar)" ]
+    then
+        echo "rar installed."
+    else
+        rarInstall
+    fi
+        
     if [ -x "$(command -v apt)" ]
     then
         echo -e "APT system detected\n"
-        apt install -y tar bzip2 gzip zip p7zip-full rar unrar-free 1> /dev/null
+        apt install -y tar bzip2 gzip zip p7zip-full 1> /dev/null
     elif [ -n "$(grep "centos" /etc/*-release)" ]
     then
         echo -e "CentOS system detected\n"
@@ -152,7 +179,7 @@ function install()
         rpm -U --quiet http://mirrors.kernel.org/fedora-epel/6/i386/epel-release-6-8.noarch.rpm 1> /dev/null
         rpm --import /etc/pki/rpm-gpg/RPM-GPG-KEY-EPEL-6 1> /dev/null
         yum repolist 1> /dev/null
-        yum install -y -q tar bzip2 gzip zip p7zip unar 1> /dev/null
+        yum install -y -q tar bzip2 gzip zip p7zip 1> /dev/null
     elif [ -x "$(command -v dnf)" ]
     then
         echo -e "DNF system detected\n"