powershell

问题 In PowerShell, what is the difference between using dot ( . ) and ampersand ( & ) when invoking a cmdlet, function, script file, or operable program? For example: . foo.sh1 & foo.sh1 There is a very similar question which has been incorrectly closed as a duplicate: Differences between ampersand (&) and dot (.) while invoking a PowerShell scriptblock. The questions are different and have completely different keywords and search rankings. The answer on What is the `.` shorthand for in a

问题 I want to check whether a given user has access to a given folder - by checking if they have "Modify" access assigned to them. I thought that the PS for that would be: (Get-Acl .\myfolder).Access | ?{$_.IdentityReference -eq "BUILTIN\Users"} |?{$_.filesystemrights.value -contains "Modify"} But the final part of that isn't working - I get back no result. But I know that they have Modify access - if I put in: (Get-Acl .\myfolder).Access | ?{$_.IdentityReference -eq "BUILTIN\Users"} | select

问题 I want to check whether a given user has access to a given folder - by checking if they have "Modify" access assigned to them. I thought that the PS for that would be: (Get-Acl .\myfolder).Access | ?{$_.IdentityReference -eq "BUILTIN\Users"} |?{$_.filesystemrights.value -contains "Modify"} But the final part of that isn't working - I get back no result. But I know that they have Modify access - if I put in: (Get-Acl .\myfolder).Access | ?{$_.IdentityReference -eq "BUILTIN\Users"} | select

问题 I want to check whether a given user has access to a given folder - by checking if they have "Modify" access assigned to them. I thought that the PS for that would be: (Get-Acl .\myfolder).Access | ?{$_.IdentityReference -eq "BUILTIN\Users"} |?{$_.filesystemrights.value -contains "Modify"} But the final part of that isn't working - I get back no result. But I know that they have Modify access - if I put in: (Get-Acl .\myfolder).Access | ?{$_.IdentityReference -eq "BUILTIN\Users"} | select

问题 I have the following script: param([Parameter(Mandatory=$true)][string]$dest) New-Item -force -path "$dest\1\" -itemtype directory New-Item -force -path "$dest\2\" -itemtype directory New-Item -force -path "$dest\3\" -itemtype directory Copy-Item -path "C:\Development\1\bin\Debug\*" -destination "$dest\1\" -container -recurse -force Copy-Item -path "C:\Development\2\bin\Debug\*" -destination "$dest\2\" -container -recurse -force Copy-Item -path "C:\Development\3\bin\Debug\*" -destination "

问题 I am able to batch rename files in a working directory by using: Dir | %{Rename-Item $_ -NewName ("0{0}.wav" -f $nr++)} However I want the file rename to start at something other than zero. Say 0500, and rename sequentially in order. Dir | %{Rename-Item $_ -NewName ("0{500}.wav" -f $nr++)} returns error. How can I tell rename to start at a number other than 0? 回答1: You can initialize the counter beforehand to 500. Also, you don't need to use a ForEach-Object loop ( % ) for this, because the

问题 I need to loop through multiple text files and check for a $ value in position 7 on each line of text and replace it with an * when found. But ONLY when it is in position 7. I do not want to change it if it is found in other positions. This is as far as I have gotten. Any help would be greatly appreciated. Get-ChildItem 'C:\*.txt' -Recurse | foreach $line in Get-Content $_ { $linePosition1to5 = $line.Substring(0,6) $linePosition7 = $line.Substring(6,1) $linePositionRest = $line.Substring(8)

问题 Im having trouble with powershell textbox here is the definition of it: $ResultsTextBox = New-Object System.Windows.Forms.TextBox $ResultsTextBox.Location = New-Object System.Drawing.Size(780,40) $ResultsTextBox.Size = New-Object System.Drawing.Size(450,340) i would like to create a function which output text to this text box but i would like to generate the text either red or green depending of my choice.. but when i do this: function LinkFn { $ResultsTextBox.clear() $SWITCH = Get

问题 Following code works as expected in powershell 5.1: function Get-Say([String] $Message, [String] $Voice = "Microsoft Irina Desktop") { Add-Type -AssemblyName System.speech $speak = New-Object System.Speech.Synthesis.SpeechSynthesizer $speak.SelectVoice($Voice) $speak.Speak($Message) } However in powershell 7.1.0 (preview 5) execution is failing with "object reference not set to an instance of an object" and I'm actually lost. Googling does not help much since it looks like this error can be

问题 Following code works as expected in powershell 5.1: function Get-Say([String] $Message, [String] $Voice = "Microsoft Irina Desktop") { Add-Type -AssemblyName System.speech $speak = New-Object System.Speech.Synthesis.SpeechSynthesizer $speak.SelectVoice($Voice) $speak.Speak($Message) } However in powershell 7.1.0 (preview 5) execution is failing with "object reference not set to an instance of an object" and I'm actually lost. Googling does not help much since it looks like this error can be