安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
|
- 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)
- 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 $_ and ? and more at The Complete Guide to PowerShell Punctuation
- Can I get or -and to work in PowerShell? - Stack Overflow
Quick Tip: With Powershell if you need to use the where command for the same result as you get in CMD, you can't just use where, you need to use where exe (with the extension), because without the extension Powershell uses an alias to its own version of the where command –
- What does the “$” symbol do in Powershell? - Stack Overflow
The dollar symbol in PowerShell variable is used to set evaluate the value of that variable
- powershell - Whats the command of call operator ? - Stack Overflow
PowerShell Call Operator I am not sure of all the operators that are in PowerShell, but another really useful one is --%, used to stop parsing The stop-parsing symbol --%, introduced in PowerShell 3 0, directs PowerShell to refrain from interpreting any further input on the line as PowerShell commands or expressions PowerShell Stop Parsing
- 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
- 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
|
|
|