Microsoft PowerShell Core

https://learn.microsoft.com/powershell/7.7/module/
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Microsoft PowerShell Core allows users to create a PowerShell profile to customize their environment...
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### Start PowerShell without Profiles

Source: https://learn.microsoft.com/powershell/module/microsoft.powershell.core/about/about_profiles

Use the NoProfile parameter of pwsh.exe to start PowerShell without loading any profiles.

```powershell
pwsh -NoProfile

```

--------------------------------

### Open All Users All Hosts Profile in Notepad

Source: https://learn.microsoft.com/powershell/module/microsoft.powershell.core/about/about_profiles

Opens the profile for all users across all host applications in Notepad. This requires administrator privileges to modify.

```powershell
notepad $PROFILE.AllUsersAllHosts
```

--------------------------------

### Open Current User Profile in Notepad

Source: https://learn.microsoft.com/powershell/module/microsoft.powershell.core/about/about_profiles

Opens the 'Current User, Current Host' profile file in Notepad for editing. This is useful for customizing your personal PowerShell environment.

```powershell
notepad $PROFILE
```

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### Create a PowerShell Profile

Source: https://learn.microsoft.com/powershell/module/microsoft.powershell.core/about/about_profiles

Use this command to create a new PowerShell profile file if it doesn't already exist. Replace `<profile-name>` with the desired path.

```powershell
if (!(Test-Path -Path <profile-name>)) {
  New-Item -ItemType File -Path <profile-name> -Force
}
```

--------------------------------

### Display All $PROFILE Properties

Source: https://learn.microsoft.com/powershell/module/microsoft.powershell.core/about/about_profiles

Displays all properties of the $PROFILE variable, showing the paths to different profile files available in the current session.

```powershell
$PROFILE | Select-Object *
```

--------------------------------

### Display pwsh.exe Parameters

Source: https://learn.microsoft.com/powershell/module/microsoft.powershell.core/about/about_profiles

Use the -? parameter with pwsh.exe to display a list of all available parameters for the PowerShell executable.

```powershell
pwsh -?

```

--------------------------------

### Check for 'All Users, All Hosts' Profile

Source: https://learn.microsoft.com/powershell/module/microsoft.powershell.core/about/about_profiles

Determines if the 'All Users, All Hosts' profile file exists on the local computer. This can be used to check for system-wide PowerShell configurations.

```powershell
Test-Path -Path $PROFILE.AllUsersAllHosts
```

--------------------------------

### Create a customized PowerShell prompt

Source: https://learn.microsoft.com/powershell/module/microsoft.powershell.core/about/about_profiles

This function redefines the prompt to display the computer name followed by the current location, ending with a '> ' symbol. This helps in quickly identifying the current context.

```PowerShell
function prompt {
    $Env:COMPUTERNAME + "\" + (Get-Location) + "> "
}

```

--------------------------------

### Run Remote Profile in Remote Session

Source: https://learn.microsoft.com/powershell/module/microsoft.powershell.core/about/about_profiles

Use Invoke-Command with a script block to run the 'Current user, Current Host' profile from a remote computer in the specified session. Dot sourcing ensures the profile executes in the current scope.

```powershell
Invoke-Command -Session $s -ScriptBlock {
  . "$HOME\Documents\WindowsPowerShell\Microsoft.PowerShell_profile.ps1"
}

```

--------------------------------

### Run Local Profile in Remote Session

Source: https://learn.microsoft.com/powershell/module/microsoft.powershell.core/about/about_profiles

Use Invoke-Command to run the 'Current user, Current Host' profile from the local computer in a specified remote session.

```powershell
Invoke-Command -Session $s -FilePath $PROFILE

```

--------------------------------

### Create Current User Profile

Source: https://learn.microsoft.com/powershell/module/microsoft.powershell.core/about/about_profiles

This command creates a profile for the current user in the current PowerShell host application if it does not exist. The `if` statement prevents overwriting an existing profile.

```powershell
if (!(Test-Path -Path $PROFILE)) {
  New-Item -ItemType File -Path $PROFILE -Force
}
```

--------------------------------

### Customize the PowerShell console window title

Source: https://learn.microsoft.com/powershell/module/microsoft.powershell.core/about/about_profiles

This function, CustomizeConsole, sets the PowerShell console window title to display the PowerShell version and the creation time of the PowerShell executable. It then clears the host screen.

```PowerShell
function CustomizeConsole {
  $hostTime = (Get-ChildItem -Path $PSHOME\pwsh.exe).CreationTime
  $hostVersion="$($Host.Version.Major)`.$($Host.Version.Minor)"
  $Host.UI.RawUI.WindowTitle = "PowerShell $hostVersion ($hostTime)"
  Clear-Host
}
CustomizeConsole

```

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### Add a function to list aliases for a cmdlet

Source: https://learn.microsoft.com/powershell/module/microsoft.powershell.core/about/about_profiles

This function, Get-CmdletAlias, lists all aliases associated with a specific cmdlet. It filters aliases based on their definition and displays the definition and name.

```PowerShell
function Get-CmdletAlias ($cmdletName) {
  Get-Alias | 
    Where-Object -FilterScript {$_.Definition -like "$cmdletName"} | 
      Format-Table -Property Definition, Name -AutoSize

}
```
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