Comfortable script for connecting to HackTheBox OpenVPN (alternative to GUI tools)

connect.sh

#!/bin/bash

SOURCE="${BASH_SOURCE[0]}"
while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink
  DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
  SOURCE="$(readlink "$SOURCE")"
  [[ $SOURCE != /* ]] && SOURCE="$DIR/$SOURCE" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
done
DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"

if [ -f $DIR/ovpn.pid ]; then
  OPID=$(cat $DIR/ovpn.pid);
  
  PROGRAM=$(ps -p $OPID | awk 'NR>1 {print $4}')
  if [ ! -z $PROGRAM ]; then
    kill -15 $OPID;
    rm $DIR/ovpn.pid;
    echo 'Disconnected from VPN'
  fi
fi

openvpn --log $DIR/ovpn.log --config $DIR/socketz.ovpn &
echo $! > $DIR/ovpn.pid
echo "NEW PID: " $(cat $DIR/ovpn.pid)

disconnect.sh

#!/bin/bash

SOURCE="${BASH_SOURCE[0]}"
while [ -h "$SOURCE" ]; do # resolve $SOURCE until the file is no longer a symlink
  DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"
  SOURCE="$(readlink "$SOURCE")"
  [[ $SOURCE != /* ]] && SOURCE="$DIR/$SOURCE" # if $SOURCE was a relative symlink, we need to resolve it relative to the path where the symlink file was located
done
DIR="$( cd -P "$( dirname "$SOURCE" )" && pwd )"

if [ -f $DIR/ovpn.pid ]; then
  OPID=$(cat $DIR/ovpn.pid);
  
  PROGRAM=$(ps -p $OPID | awk 'NR>1 {print $4}')
  if [ ! -z $PROGRAM ]; then
    kill -15 $OPID;
    rm $DIR/ovpn.pid;
    echo 'Disconnected from VPN'
  fi
fi