How to Permanently Change PowerShell Prompt

 The PowerShell command prompt indicates that PowerShell is ready to run a command,

PS C:\>

It is determined by the built-in Prompt function and can be customized by running following command to re-define Prompt function,

  function prompt {"<Script block>"}

Here, <Script block> is script block which will determine/generate prompt value (character string). For example, following have prompt include current date and time

PS C:\>

PS C:\> function Prompt {"$(Get-Date)> "}

06/03/2021 11:39:23>

06/03/2021 11:39:25>

The change is only valid for current session, the prompt of new session is still default value. In order to keep new prompt for all sessions, you have to create your own Prompt function and saving it in your PowerShell profile as following,

1. Find out your PowerShell profile file with "$profile"

PS C:\> $profile

C:\Users\admin\Documents\WindowsPowerShell\Microsoft.PowerShell_profile.ps1

PS C:\>

2. Add customized Prompt function to profile

If the file or directory does not exist, you can manually create it, then add customized Prompt function to the file. For example, add following lines

function Prompt { "PS [" + ${ENV:USERNAME} + "@" + ${ENV:COMPUTERNAME} + "]> "}

The prompt will be in the format "PS [user-name@computer-name]> " in all new PowerShell sessions.