Shorten the path in the PowerShell prompt if it's too long

prompt_limiter.ps1

function prompt {
    $path = $pwd
    $path_arr = $path.path.Split("\")
    if ($path_arr.count -gt 4)
    {
        $path = @($path_arr[0], "..." + $path_arr[-3,-2,-1]) -join "\"
    }
    'PS ' + $path + '> '
}

Shorten_PowerShell_Prompt.md

An adjustment to the PowerShell prompt function that limits the number of path components. In this case the limit is 4 components.

If there are more than four components the components between the first one and the last three are replaced with "...".

It is similar to what the PROMPT_DIRTRIM environment variable.