The least that you need to know about PowerShell.
Accessing remote systems with PowerShell.
Commonly used commands in PowerShell.
Azure DevOps has an extension that provides a calendar for each Team, but the API is not documented. These notes cover API methods for the Team calendar, to enable automation.
The restic utility provides a convenient and well-designed command-line tool for backing up files and directories.
Notes on version 2 of the command-line tool for AWS.
Notes on querying AWS.
Notes on shell scripting with Bash and other UNIX shells.