[Solved] PowerShell New-CommandWrapper : Supply values for the following parameters
I mean to colorize the output of ls.
I checked Powershell: Properly coloring Get-Childitem output once and for all.
The two options appear to be:
- Use
New-CommandWrapper, as advocated in the OP and the answer by Jon Z. - Use module
PSColor.
I obtained the code for New-CommandWrapper from the OP (it is the same as provided by O’Reilly), placed it in file New-CommandWrapper.ps1, and dot source it in my profile.ps1.
Now when I open a new session I get
cmdlet New-CommandWrapper.ps1 at command pipeline position 1
Supply values for the following parameters:
Name:
Is this ok? If so, what should I enter? Or how do I fix this?
(I am certain the issue is quite simple).
Note: I couldn’t make PSColor work, and this is possibly worth a another question.
As mentioned in a comment, after importing the module, (almost?) any cmdlet outputs
Value cannot be null.
Parameter name: command
En línea: 39 Carácter: 9
+ $steppablePipeline.Begin($PSCmdlet)
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~`
EDIT:
With the modification suggested by Thomas, the problem changed.
Now I get the same Value cannot be null. error.
I would like to conclude that his suggestion is right, and I solved one of the many chained problems I had… but I cannot be sure.
Solution #1:
As mentioned in the comments, New-CommandWrapper is packaged as a script, rather than as a function, so you’ll need to edit the script file slightly if you want to dot-source it:
- Insert
function New-CommandWrapper {at the very top ofNew-CommandWrapper.ps1 - Add an
}on the very last line
Now you can dot-source it (from your profile if need be) and use the example given in the linked answer:
PS C:> . .path oNew-CommandWrapper.ps1
PS C:> New-CommandWrapper Out-Default `
>>> -Process {
>>> if(($_ -is [System.IO.DirectoryInfo]) -or ($_ -is [System.IO.FileInfo]))
>>> {if(-not ($notfirst)) {
>>> Write-Host " Directory: $(pwd)`n"
>>> Write-Host "Mode LastWriteTime Length Name"
>>> Write-Host "---- ------------- ------ ----"
>>> $notfirst=$true
>>> }
>>> if ($_ -is [System.IO.DirectoryInfo]) {
>>> Write-host ("{0,-7} {1,25} {2,10} {3}" -f $_.mode, ([String]::Format("{0,10} {1,8}", $_.LastWriteTime.ToString("d"), $_.LastWriteTime.ToString("t"))), $_.length, $_.name) -foregroundcolor "yellow" }
>>> else {
>>> Write-host ("{0,-7} {1,25} {2,10} {3}" -f $_.mode, ([String]::Format("{0,10} {1,8}", $_.LastWriteTime.ToString("d"), $_.LastWriteTime.ToString("t"))), $_.length, $_.name) -foregroundcolor "green" }
>>> $_ = $null
>>> }
>>>}