I have to look at the last few lines of a large file (typical size is 500MB-2GB). I am looking for a equivalent of Unix command tail for Windows Powershell. A few alternatives available on are, http://tailforwin32.sourceforge.net/ and Get-Content [filename] | Select-Object -Last 10 For me, it is not allowed to use the first alternative, … Read more
How do I get the current username in Windows PowerShell? 14 Answers 14
I am writing a PowerShell script to create several directories if they do not exist. The filesystem looks similar to this D:\ D:\TopDirec\SubDirec\Project1\Revision1\Reports\ D:\TopDirec\SubDirec\Project2\Revision1\ D:\TopDirec\SubDirec\Project3\Revision1\ Each project folder has multiple revisions. Each revision folder needs a Reports folder. Some of the “revisions” folders already contain a Reports folder; however, most do not. I need to … Read more
I’ve been looking for a way to terminate a PowerShell (PS1) script when an unrecoverable error occurs within a function. For example: function foo() { # Do stuff that causes an error $host.Exit() } Of course there’s no such thing as $host.Exit(). There is $host.SetShouldExit(), but this actually closes the console window, which is not … Read more
How do I ask PowerShell where something is? For instance, “which notepad” and it returns the directory where the notepad.exe is run from according to the current paths. 17 s 17
If I have a function which accepts more than one string parameter, the first parameter seems to get all the data assigned to it, and remaining parameters are passed in as empty. A quick test script: Function Test([string]$arg1, [string]$arg2) { Write-Host “`$arg1 value: $arg1” Write-Host “`$arg2 value: $arg2” } Test(“ABC”, “DEF”) The output generated is … Read more
Is there a built-in IsNullOrEmpty-like function in order to check if a string is null or empty, in PowerShell? I could not find it so far and if there is a built-in way, I do not want to write a function for this. 13 s 13 You guys are making this too hard. PowerShell handles … Read more
There’s a PowerShell script named itunesForward.ps1 that makes iTunes fast forward 30 seconds: $iTunes = New-Object -ComObject iTunes.Application if ($iTunes.playerstate -eq 1) { $iTunes.PlayerPosition = $iTunes.PlayerPosition + 30 } It is executed with a prompt line command: powershell.exe itunesForward.ps1 Is it possible to pass an argument from the command line and have it applied in … Read more
What is the “best” way to handle command-line arguments? It seems like there are several answers on what the “best” way is and as a result I am stuck on how to handle something as simple as: script.ps1 /n name /d domain AND script.ps1 /d domain /n name. Is there a plugin that can handle … Read more
Is it possible to split a PowerShell command line over multiple lines? In Visual Basic I can use the underscore (_) to continue the command in the next line. 15 s 15 You can use a space followed by the grave accent (backtick): Get-ChildItem -Recurse ` -Filter *.jpg ` | Select LastWriteTime However, this is … Read more
