bash-ize the upgrade script

cyberpanel_upgrade.sh

@@ -0,0 +1,133 @@
+#!/bin/bash
+
+SERVER_OS='Undefined'
+OUTPUT=$(cat /etc/*release)
+
+check_return() {
+#check previous command result , 0 = ok ,  non-0 = something wrong.
+if [[ $? -eq "0" ]] ; then
+	:
+else
+	echo -e "\ncommand failed, exiting..."
+	exit
+fi
+}
+
+echo -e "\nChecking OS..."
+OUTPUT=$(cat /etc/*release)
+if  echo $OUTPUT | grep -q "CentOS Linux 7" ; then
+	echo -e "\nDetecting CentOS 7.X...\n"
+	SERVER_OS="CentOS7"
+	yum clean all
+  yum update -y
+elif echo $OUTPUT | grep -q "CloudLinux 7" ; then
+	echo -e "\nDetecting CloudLinux 7.X...\n"
+	SERVER_OS="CentOS7"
+	yum clean all
+  yum update -y
+elif  echo $OUTPUT | grep -q "CentOS Linux 8" ; then
+	echo -e "\nDetecting CentOS 8.X...\n"
+	SERVER_OS="CentOS8"
+	yum clean all
+  yum update -y
+elif echo $OUTPUT | grep -q "Ubuntu 18.04" ; then
+	echo -e "\nDetecting Ubuntu 18.04...\n"
+	SERVER_OS="Ubuntu"
+else
+	cat /etc/*release
+	echo -e "\nUnable to detect your OS...\n"
+	echo -e "\nCyberPanel is supported on Ubuntu 18.04, CentOS 7.x, CentOS 8.x and CloudLinux 7.x...\n"
+	exit 1
+fi
+
+if [ $SERVER_OS = "CentOS7" ] ; then
+  yum -y install yum-utils
+  yum -y groupinstall development
+  yum -y install https://centos7.iuscommunity.org/ius-release.rpm
+  yum -y install python36u python36u-pip python36u-devel
+elif [ $SERVER_OS = "CentOS8" ] ; then
+  yum install -y wget strace htop net-tools telnet curl which bc telnet htop libevent-devel gcc libattr-devel xz-devel mariadb-devel curl-devel git platform-python-devel tar
+	dnf --enablerepo=PowerTools install gpgme-devel -y
+	dnf install python3 -y
+else
+  apt update -y
+	DEBIAN_FRONTEND=noninteractive apt upgrade -y
+	DEBIAN_FRONTEND=noninteracitve apt install -y htop telnet python-mysqldb python-dev libcurl4-gnutls-dev libgnutls28-dev libgcrypt20-dev libattr1 libattr1-dev liblzma-dev libgpgme-dev libmariadbclient-dev libcurl4-gnutls-dev libssl-dev nghttp2 libnghttp2-dev idn2 libidn2-dev libidn2-0-dev librtmp-dev libpsl-dev nettle-dev libgnutls28-dev libldap2-dev libgssapi-krb5-2 libk5crypto3 libkrb5-dev libcomerr2 libldap2-dev python-gpg python python-minimal python-setuptools virtualenv python-dev python-pip git
+  DEBIAN_FRONTEND=noninteractive apt install -y python3-pip
+	DEBIAN_FRONTEND=noninteractive apt install -y build-essential libssl-dev libffi-dev python3-dev
+	DEBIAN_FRONTEND=noninteractive apt install -y python3-venv
+fi
+
+if [ $SERVER_OS = "Ubuntu" ] ; then
+  pip3 install virtualenv
+  check_return
+else
+  pip3.6 install virtualenv
+  check_return
+fi
+
+rm -rf /usr/local/CyberPanel
+virtualenv -p /usr/bin/python3 --system-site-packages /usr/local/CyberPanel
+check_return
+rm -rf requirments.txt
+wget https://raw.githubusercontent.com/usmannasir/cyberpanel/stable/requirments.txt
+. /usr/local/CyberPanel/bin/activate
+check_return
+
+if [ $SERVER_OS = "Ubuntu" ] ; then
+  . /usr/local/CyberPanel/bin/activate
+  check_return
+  pip3 install --ignore-installed -r requirments.txt
+  check_return
+else
+  source /usr/local/CyberPanel/bin/activate
+  check_return
+  pip3.6 install --ignore-installed -r requirments.txt
+  check_return
+fi
+
+virtualenv -p /usr/bin/python3 --system-site-packages /usr/local/CyberPanel
+check_return
+rm -rf upgrade.py
+wget https://raw.githubusercontent.com/usmannasir/cyberpanel/stable/plogical/upgrade.py
+/usr/local/CyberPanel/bin/python upgrade.py stable
+check_return
+##
+
+virtualenv -p /usr/bin/python3 /usr/local/CyberCP
+check_return
+wget -O requirements.txt https://raw.githubusercontent.com/usmannasir/cyberpanel/stable/requirments.txt
+
+if [ $SERVER_OS = "Ubuntu" ] ; then
+  . /usr/local/CyberCP/bin/activate
+  check_return
+  pip3 install --ignore-installed -r requirments.txt
+  check_return
+else
+  source /usr/local/CyberCP/bin/activate
+  check_return
+  pip3.6 install --ignore-installed -r requirments.txt
+  check_return
+fi
+
+
+##
+
+rm -f wsgi-lsapi-1.4.tgz
+rm -rf wsgi-lsapi-1.4
+wget http://www.litespeedtech.com/packages/lsapi/wsgi-lsapi-1.4.tgz
+tar xf wsgi-lsapi-1.4.tgz
+cd wsgi-lsapi-1.4
+/usr/local/CyberPanel/bin/python ./configure.py
+make
+
+cp lswsgi /usr/local/CyberCP/bin/
+
+chmod 700 /usr/bin/adminPass
+
+##
+systemctl restart lscpd
+
+echo "###################################################################"
+echo "                CyberPanel Upgraded                                "
+echo "###################################################################"