UnixLike.psm1
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function Get-CommandSource([Parameter(Mandatory=$True)][String]$Name) { Get-Command $Name | Select-Object -ExpandProperty Source } function Select-PipedString( [Parameter(Mandatory)][String]$Regex , [String]$DirOrFile , [bool]$Recurse , [Parameter(ValueFromPipeline=$True)]$Input) { $items = if($DirOrFile) { if(Test-Path -Path $DirOrFile -PathType Container) { Get-ChildItem -Recurse $Recurse $DirOrFile | ForEach-Object { $_.ToString() } } else { Get-ChildItem $DirOrFile } } else { $Input | ForEach-Object { $_.ToString() } } return $items | Select-String $Regex } New-Alias -Name which -Value Get-CommandSource New-Alias -Name df -Value Get-Volume New-Alias -Name grep -Value Select-PipedString |