Download powershell file + automatic execute

You can use PowerShell cmdlets as a native alternative of the wget and curl tool on Windows 10 and Windows Server For versions of PowerShell earlier than 3. WebClient class must be used to download a file from the Internet. This is great for a security measure but annoying if you want a PowerShell script to execute when a scheduled task is run. The work around is simple. You can use a batch script to auto-run PowerShell scripts.

The following is the batch script you need in order to auto-run PowerShell scripts on Windows Each PowerShell script will need its own Batch Script. Consider the following example;. If you are creating a script that will need to run automatically, then you will need to store the credentials in the script itself. I recommend creating a secure string password and store it in a text file on the computer that is running the script. This cmdlet allows you to queue files, set priority useful for bandwidth limitation , can run in the background and download multiple files asynchronous.

This is the most basic method of downloading a file with BitsTransfer, you only need a source and destination. By default, the download jobs run in the foreground consuming the maximum bandwidth available. You can change this by setting the priority of the job:. Another option is to run the download job asynchronous , allowing you to start multiple download jobs at the same time. As you can see I have downloaded the same bin file as before.

But if we look in the destination folder we only see a. To download multiple files with PowerShell we first need to know which files are available. We can use the Invoke-WebRequest cmdlet first to get the content from the webpage. This will return not only the content of the webpage but also other properties, like Links and InputFields. We can filter the links with a simple like query and select only the href property from each link. So we now have the links for all random binary files.

All we need to do is download each one of them. It allows you to download multiple files simultaneously in the background with the parameter -Asynchronous. Any time a file is added to this folder, the script responds by echoing the name of that new file:.

Keep in mind two things, however. Conversely, if you make the value too long, you might miss new files, assuming they get added and then deleted before the polling time expires. For example, say your script checks every 5 minutes for new files. If you add new files and then delete all those files 3 minutes later, the script will never know that those files were added to the folder.

Play around with the polling interval and see what works best for you.