dummy shell bash script to install Visual Studio Code on MacOS, assuming the executing user has sudo rights ^^

installVsCode.sh

#!/bin/bash

# Script to install VisualStudio Code, Atom or Github Desktop

# the app settings
DLURL=""
APPNAME=""

# our settings
GLOBALINST=0
TMPDIR="/tmp"
APPFOLDER="$HOME/Applications"
TMPFILE="$TMPDIR/tmp.zip"

function printHelp(){
  echo "$0 = default is install Visual Studio Code latest version"
  echo "-l = local user installation"
  echo "-c = installs the Visual Studio Code editor"
  echo "-g = global installation"
  echo "-a = installs the Atom editor"
  echo "-h = installs the Github Desktop client"
}

while getopts ':lgahc' OPTION ; do
  case "$OPTION" in
    l)
      APPFOLDER="$HOME/Applications"
      GLOBALINST=0
      ;; # local installation
    g)
      APPFOLDER="/Applications"
      GLOBALINST=1
      ;; # global installation
    a) # install atom :D
      DLURL="https://atom.io/download/mac"
      APPNAME="Atom.app"
    ;;
    h) # install github desktop
      DLURL="https://central.github.com/deployments/desktop/desktop/latest/darwin"
      APPNAME="GitHub Desktop.app"
    ;;
    c)
      DLURL="https://go.microsoft.com/fwlink/?LinkID=620882"
      APPNAME="Visual Studio Code.app"
    ;;
    \?)
      echo "Invalid option: -$OPTARG" >&2
      printHelp
      exit 1
      ;;
    *)
      printHelp
    ;;
  esac
done

if [ -z "$DLURL" ]; then
  echo "No download url set, exiting"
  printHelp
  exit 2
fi

echo "Downloading file from $DLURL.."
curl -L -o $TMPFILE  $DLURL
RC=$?

if [ ! "$RC" -eq 0 ]; then
  echo "Error when downloading the file from $DLURL."
  exit 1
fi

echo "Unpacking.."
if [ 1 = $GLOBALINST ]; then
  sudo unzip -d "$TMPDIR" $TMPFILE
else
  unzip -d "$TMPDIR" $TMPFILE
fi


if [ -r "$TMPDIR/$APPNAME" ]; then
  echo "Removing existing old app $APPNAME.."
  sudo rm -rf "$APPFOLDER/$APPNAME"

  echo "Move app to app folder"
  if [ 1 = $GLOBALINST ]; then
    sudo mv "$TMPDIR/$APPNAME" "$APPFOLDER/"
  else
    mv "$TMPDIR/$APPNAME" "$APPFOLDER/"
  fi
fi

echo "Remove tmp file.."
rm $TMPFILE