PowerShell

Getting Help

Open the online documentation page for the Get-Help command:
```
Get-Help -Name Get-Help -Online
```

Output a list of accepted verbs to use when naming a function:
```
Get-Verb | Sort-Object -Property Verb
```

Create a copy of file old.txt located at new.txt:

# Alias: "cp"
Copy-Item 'old.txt' 'new.txt'

Create a symbolic link to a file target.txt located at link.txt:

# Alias: "ni"
New-Item `
    -ItemType SymbolicLink `
    -Value 'target.txt' `
    -Path 'link.txt'

Remove a file located at target.txt
```
# Alias: "rm"
Remove-Item 'target.txt'
```

Remove a directory located at dir:

# Alias: "rm"
Remove-Item -Recurse 'dir'

Force remove a directory located at dir:

# Alias: "rm"
Remove-Item -Recurse -Force 'dir'

Output the contents of file.txt to the console:
```
# Alias: "cat"
Get-Content 'file.txt'
```

Set the contents of the clipboard to hello world:
```
Set-Clipboard -Value 'hello world'
```
Output the contents of the clipboard to the console:
```
Get-Clipboard
```

Open the File Explorer in the current directory:
```
# Alias: "ii"
Invoke-Item .
```

Open a URI using the default handler:

Launching the calculator:

Start-Process -FilePath 'calculator://'

Launching the Windows Store:

Start-Process -FilePath 'ms-windows-store://home'

Viewing a photo in the native Photos application:

Start-Process -FilePath 'ms-photos:photo?file=FILEPATH/photo.jpg'

Join together multiple components of a path:

$(Join-Path "one" "two" "three.txt")

one\two\three.txt

Replace the component of the current directory corresponding to the home directory with ~:
```
$(Get-Location).ToString().Replace($HOME, "~")
```

Create a new alias vi to invoke the NeoVim editor:

New-Alias -Name "vi" -Value "nvim.exe" -Description "NeoVim" -Option ReadOnly

Test if a network connection can be formed with a remote host on a particular port:

Test-NetConnection `
    -ComputerName example.com `
    -CommonTCPPort SMB

Identify the process running on port 80:

Get-Process -Id (Get-NetTCPConnection -LocalPort 80).OwningProcess

I stumbled upon a useful article: How-to: The -f Format operator

As practice, I wrote the following command, which prints the elapsed when launching a new instance of PowerShell, up to the first 3 decimal places:

"{0:n3}s" -f (Measure-Command { pwsh -NoLogo -NoProfile -Command 1 }).TotalSeconds

Changing the network profile from Public to Private:

Set-NetConnectionProfile -InterfaceAlias 'Wi-Fi' -NetworkCategory 'Private'

Disabling the Widgets application (and the annoying News Feed accompanying it):
```
winget uninstall "Windows Web Experience Pack"
```

Pasting the clipboard, and extracting the first element on each row, separated by whitespace:
```
Get-Clipboard | ForEach-Object { $(-Split $_)[0] }
```
To learn more, see The array sub-expression operator

Invoke-WebRequest -Uri 'https://URL.ext' -OutFile 'FILE.ext'

Expand-Archive -LiteralPath 'ARCHIVE.zip' -DestinationPath 'FOLDER'

Get-FileHash -Algorithm 'SHA256' -Path 'FILE'

TIL There is a Clear-RecycleBin module. How neat!

Clear all recycling bins on every drive on the local machine without prompting for confirmation:
```
Clear-RecycleBin -Force
```