Not precisely able to understand the merit of Azure CLI on Windows environment.
Is it targetted for the audience who want to manage Azure IAAS from Linux environment?
I thought Powershell core is going to be the way for non-Windows admins. Is PowerShell Core not going to be ported to well on all platforms, to serve the cross-platform audience?
In a nutshell, is it worth learning Azure CLI?
Azure CLI is a PowerShell-like-tool available for all platforms. You can use the same commands no matter what platform you use: Windows, Linux or Mac.
Now, there are two version Azure CLI. The Azure CLI 1.0 was written with Node.js to achieve cross-platform capabilities, and the new Azure CLI 2.0 is written in Python to offer better cross-platform capabilities. Both are Open Source and available on Github. However, for now, only certain PowerShell cmdlets support use on Linux.
I think the answer is yes. For a Linux or Mac developer, I think they more likely to use Azure CLI.
Powershell was not available in non-Windows platform prior to 2018. Staring Jan 2018, Powershell is available in MacOS and Linux platforms.
Installation instructions for Powershell on MacOS or Linux is available here
Just wanted to add my experience with both Azure Cli and Az PowerShell.
As per 2019, both are cross-platform so it should only be a language/syntax preference but with Azure Cli all/most commands are idempotent.
I've ended up replacing all my ARM Templates with Azure Cli scripts as it is less verbose and easy to read.
With Az Powershell, you still need to check if the resource exists before creating it otherwise it will throw an exception so scripts can become very complicated for no reason.
We're using both Azure Cli and Az Powershell with Azure DevOps. Azure Cli command can only be executed from bash (Linux) or bat (Windows) scripts. So it is not optimum...
PowerShell is Open Source too. Microsoft have just released PowerShell Azure Az module (Dec 2018), which uses .Net core. So it runs on Linux,Mac OS and Windows. Azure CLI is still there for Linux developers, if preferred.
Both, Azure CLI and the PowerShell package use the REST API of Azure.
As one of our Microsoft contacts said: Use whatever you like and you prefer.
There are some pros for Azure CLI:
Currently there is 1 really big positive for PowerShell: there is a huge repository of PowerShell script examples for Azure. BUT: often you have to do it on your own to fit your requirements - therefore an example might be a good starting point - sometimes it is easier to begin from scratch.
My recommendation would be: Use Azure CLI --> For Scripting use the language your company is familiar with.