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copy-item

Copy-Item .\module\ 1023 -Recurse this cmdlet can copy the content in module to directory 1023 Copy-Item .\module* 1023 -Recurse the character * can not add the directory name

This example copies the contents of the C:\Logfiles directory into the existing C:\Drawings directory. The Logfiles directory isn't copied.

If the Logfiles directory contains files in subdirectories, those subdirectories are copied with their file trees intact. By default, the Container parameter is set to True, which preserves the directory structure.

Pay attention to the difference

Copy-Item -Path "C:\Logfiles\*" -Destination "C:\Drawings" -Recurse

If you need to include the Logfiles directory in the copy, remove the * from the Path. For example:

Copy-Item -Path "C:\Logfiles" -Destination "C:\Drawings" -Recurse

I can get the procedure to install powershell in raspberry pi4 https://www.cnblogs.com/shanyou/p/6287890.html

Start-Process -FilePath "powershell" -Verb RunAs

This example starts PowerShell by using the Run as administrator option.

about_Execution_Policies problem

The default Execution_Policy is Restricted.So you need to do eleminate the restriction by manual. Set-ExecutionPolicy -ExecutionPolicy Unrestricted Then press Y

ls | Where-Object { $_.Mode.Substring(0,1) -eq 'd'} | ls | ForEach-Object {$_.Name}

show all items of the child directory

Get-ChildItem -Recurse -Filter *.json

This cmdlet helps us get same type files

New-NetFirewallRule

new a firewall rule

$PROFILE indictates the default powershell script file path

add the content to support "UTF-8"

$OutputEncoding = [console]::InputEncoding = [console]::OutputEncoding = New-Object System.Text.UTF8Encoding

Read-Host

Read the parameters from the input of the user and differs from the beginging input we can access the value by $args[index]

$OutputEncoding = [console]::InputEncoding = [console]::OutputEncoding = New-Object System.Text.UTF8Encoding

set the powershell as UTF-8.And you must add the former content to $PROFILE.

This link indicates the Remove-item high-level functions

link

close the monitor

(Add-Type '[DllImport("user32.dll")]public static extern int SendMessage(int hWnd, int hMsg, int wParam, int lParam);' -Name a -Pas)::SendMessage(-1,0x0112,0xF170,2)

test the net port

netsh interface ipv4 show excludedportrange protocol=tcp