Softether VPN Setup: Automatic Script executed from git - bash

Question

Am kind of new to bash scripting but i was wondering if it is possible to create automatic installations script for softether vpn server on raspberry pi to be executed from git and if it is possible how do you create one as I cant find any of the tutorial online to implement what i want, I tried to create mine and I failed miserably. any help will be appreciated.Thanks
sudo su
cd /root/
wget https://www.softether-download.com/files/softether/v4.34-9745-rtm-2020.04.05-tree/Linux/SoftEther_VPN_Server/32bit_-_ARM_EABI/softether-vpnserver-v4.34-9745-rtm-2020.04.05-linux-arm_eabi-32bit.tar.gz
tar xzf softether-vpnserver-v4.34-9745-rtm-2020.04.05-linux-arm_eabi-32bit.tar.gz && rm softether-vpnserver-v4.34-9745-rtm-2020.04.05-linux-arm_eabi-32bit.tar.gz
cd vpnserver && sudo make
cd ..
sudo mv vpnserver /usr/local && cd /usr/local/vpnserver/
sudo chmod 600 *
sudo chmod 700 vpnserver vpncmd
sudo ./vpnserver start
sudo ./vpncmd
ServerPasswordSet
echo net.ipv4.ip_forward = 1 | ${SUDO} tee -a /etc/sysctl.conf
echo net.ipv6.ip_forward = 1 | ${SUDO} tee -a /etc/sysctl.conf
sudo cat >> /etc/init.d/vpnserver << EOF
#!/bin/sh
### BEGIN INIT INFO
# Provides: vpnserver
# Required-Start: $local_fs $network
# Required-Stop: $local_fs $network
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: SoftEther VPN 1.0 RC2
# Description: Start vpnserver daemon SoftEther VPN 1.0 Server
### END INIT INFO
DAEMON=/usr/local/vpnserver/vpnserver
LOCK=/var/lock/vpnserver
. /lib/lsb/init-functions
test -x $DAEMON || exit 0
case "$1" in
start)
sleep 3
log_daemon_msg "Starting SoftEther VPN 1.0 Server" "vpnserver"
$DAEMON start >/dev/null 2>&1
touch $LOCK
log_end_msg 0
sleep 3
;;
stop)
log_daemon_msg "Stopping SoftEther VPN 1.0 Server" "vpnserver"
$DAEMON stop >/dev/null 2>&1
rm $LOCK
log_end_msg 0
sleep 2
;;
restart)
$DAEMON stop
sleep 2
$DAEMON start
sleep 5
;;
status)
if [ -e $LOCK ]
then
echo "vpnserver is running."
else
echo "vpnserver is not running."
fi
;;
*)
echo "Usage: $0 {start|stop|restart|status}"
exit 1
esac
exit 0
EOF
sudo chmod 755 /etc/init.d/vpnserver
sudo update-rc.d vpnserver defaults
systemctl enable vpnserver
sudo /etc/init.d/vpnserver start
sudo /etc/init.d/vpnserver stop
sudo /etc/init.d/vpnserver restart
wget -qO- https://ipecho.net/plain ; echo