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- What does $$, $?, $^ represent in powershell? - Stack Overflow
In PowerShell, a dollar sign preceding a name indicates a variable The symbols in question are just special cases of variables provided by the PowerShell environment They are also known as "automatic" variables More specifically: $$ is a variable containing the last token of the last line input into the shell (does not contain the whole command)
- powershell - How to effectively use the `-Filter` parameter on Active . . .
The -Filter string is very much like Powershell syntax (not quite, but most of the way there) You can use most of the same logical operators that Powershell supports, and they work much in the same way that Powershell operators do This answer aims to clarify this and explain how to use this elusive parameter
- What does the @ symbol do in PowerShell? - Stack Overflow
Because this type of question (what does 'x' notation mean in PowerShell?) is so common here on StackOverflow as well as in many reader comments, I put together a lexicon of PowerShell punctuation, just published on Simple-Talk com Read all about @ as well as % and # and $_ and ? and more at The Complete Guide to PowerShell Punctuation
- windows - How to run a PowerShell script - Stack Overflow
powershell starts an PowerShell and runs the command specified in quotation marks gc '%~0' is the first command that runs in PowerShell It reads the content of the current file, as '%~0' is replaced by the current script location
- How to run a PowerShell script without displaying a window?
I found a way to do this by compiling a PowerShell script to a Windows executable Third party modules are required to build the executable but not to run it My end goal was to compile a one line PowerShell script that ejects a DVD on my system: (New-Object -com "WMPlayer OCX 7") cdromcollection item(0) eject() My target system is running
- PowerShell and the -contains operator - Stack Overflow
Having re-read the question I think I need to clarify the difference between the Contains powershell operator and the Contains() NET String method – Kev Commented Nov 30, 2016 at 11:08
- What does the “$” symbol do in Powershell? - Stack Overflow
The dollar symbol in PowerShell variable is used to set evaluate the value of that variable
- Multiple -and -or in PowerShell Where-Object statement
By wrapping your comparisons in {} in your first example you are creating ScriptBlocks; so the PowerShell interpreter views it as Where-Object { <ScriptBlock> -and <ScriptBlock> } Since the -and operator operates on boolean values, PowerShell casts the ScriptBlocks to boolean values In PowerShell anything that is not empty, zero or null is true
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