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# Implement cd -
# Nice inspiration from http://stackoverflow.com/questions/31888580/a-better-way-to-check-if-a-path-exists-or-not-in-powershell
if (Test-Path alias:cd)
{
Remove-Item alias:cd | Out-Null
}
$_locationStack = New-Object System.Collections.Stack
$SetLocationCmd = Get-Command Set-Location
$SetLocationCmdMetadata = New-Object System.Management.Automation.CommandMetadata $SetLocationCmd
$Binding = [System.Management.Automation.ProxyCommand]::GetCmdletBindingAttribute($SetLocationCmdMetadata)
$Params = [System.Management.Automation.ProxyCommand]::GetParamBlock($SetLocationCmdMetadata)
$Command = {
try
{
$currentDirectory = (Get-Location).Path
$p = $PSBoundParameters[$PSCmdlet.ParameterSetName]
if ( -not $p)
{
$PSBoundParameters[$PSCmdlet.ParameterSetName] = $HOME
}
if ($p -eq "-")
{
if ($_locationStack.Count -eq 0)
{
$p = "."
}
else
{
$p = $_locationStack.Pop()
}
$PSBoundParameters[$PSCmdlet.ParameterSetName] = $p
Set-Location @PSBoundParameters
}
else
{
Set-Location @PSBoundParameters
if ($?)
{
if ($_locationStack.Count -eq 0 -or $_locationStack.Peek() -ne $p)
{
$_locationStack.Push($currentDirectory)
}
}
}
}
catch { throw $_ }
}
$Function:cd = '{0}param({1}) {2}' -f $Binding,$Params,$Command
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@lihuelworks lihuelworks commented Jun 25, 2020

I know it's been a while, but how is this exactly used? This is a really useful script, and I'd like to know using it so it works as an "cd -", as mentioned in your comment here: https://www.hanselman.com/blog/SpendLessTimeCDingAroundDirectoriesWithThePowerShellZShortcut.aspx

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@bvli bvli commented Aug 22, 2020

I source it from my profile by adding this line to it:

. ./Set-LocationEx.ps1

If you just want to try it out, you can just do the same from the command line prompt.

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@lihuelworks lihuelworks commented Aug 23, 2020

Got it, but for some reason, it doesn't work with paths that are "longer". For example, going from:

C:\Users\Dude\Downloads ---> C:\Users\Dude\Downloads\example

works, but going from
C:\Users\Dude\Downloads ---> C:\Users\Dude\Documents\Stuff\More Stuff

Doesn't throwing a

cd: Can't find acces route 'C:\Users\Dude\Documents\Stuff\More Stuff\- because it doesn't exist+
+ cd -
+ ~~~~
    + CategoryInfo          : ObjectNotFound: (C:\Users\Dude\D...shell scripts\-:String) [Set-Location], ItemNotFoundException
    + FullyQualifiedErrorId : PathNotFound,Microsoft.PowerShell.Commands.SetLocationCommand'

Any idea what it might be?

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@bvli bvli commented Oct 25, 2020

Uh.. I'm using it daily and have for years and I have never experienced anything like that. Neither on Windows Powershell nor Powershell core.. I know it doesn't really help you - sorry about that..

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