How do I reference multiple paths in Powershell? - windows

I am writing a script that pulls from multiple directories located at the root folder of the script. When I use this:
$ScriptPath="$PSScriptRoot\Scripts"
$BinaryPath="$PSScriptRoot\Binaries"
$DataFolderPath="$PSScriptRoot\Data"
PowerShell complains about 2 of the 3 paths saying they can't be found.
I also tried this but no luck.
$ScriptPath=Join-Path (Split-Path $PSScriptRoot) -ChildPath Scripts
$BinaryPath=Join-Path (Split-Path $PSScriptRoot) -ChildPath Binaries
$DataFolderPath=Join-Path (Split-Path $PSScriptRoot) -ChildPath Data

I would try:
$ScriptPath=$PSScriptRoot+"\Scripts"
$BinaryPath=$PSScriptRoot+"\Binaries"
$DataFolderPath=$PSScriptRoot+"\Data"

How are you running this?
This...$PSScriptRoot, will only be populated when you run the full script, not when you run this in the ISE/VSCode, or other editor pane window.
Lastly, $PSScriptRoot, as documented...
About Automatic Variables
https://learn.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_automatic_variables?view=powershell-7.1
PSScriptRoot Contains the full path to the script that invoked
... thus, if you are not in a source directory with that set of named subfolders, then you should expect this to fail.
If you want this to work, then you must check for the existence of the subfolders before you begin, and if not already there, then, your script should create them, then run the rest of your code.

Related

PS script copy new files

Pretty noob at writing PS scripts - wrote this up and have been actively using it although still requires some manual intervention trying to achieve my goal, which I would like to automate completely.
I will try my best to explain clearly;
I am trying to copy '.bak' files to a specific directory from a source folder that has files dropped in it on a daily basis. Problem is the way I created the script, every time it runs it creates a new folder with some of the same files as previously copied.
The files being copied all follow the same name structure in date sequence;
xxxx_2018_01_01_2131231.bak
xxxx_2018_01_02_2133212.bak
xxxx_2018_01_03_2199531.bak
How could I write the script so that it copies newer files only and not what has already been copied previously?
It would also be nice to only create a new folder then a certain part of the file name changes.
Here is the script;
$basedir = "Path:\path"
$today = (Get-Date).ToString('MM_dd_yy')
$Filter = '*.bak'
$location = New-Item -Path $basedir -Type Directory -Name $today
Copy-Item -Path 'Path:\path' -Destination $location -Filter $Filter -Recurse
Any pointers are greatly appreciated!
Thanks in advance for your help!
I'm not sure if there is an easy way to code this, but the general answer would be using the Get-ChildItem cmdlet.
"The Get-ChildItem cmdlet gets the items in one or more specified locations. If the item is a container, it gets the items inside the container, known as child items. You can use the -Recurse parameter to get items in all child containers and use the -Depth parameter to limit the number of levels to recurse."
By using the Get-ChildItem, you could get the listing of files that are in both directories, and then compare them to see if they have the same name. Then build an if() argument based on criteria you wish to use to compare them.
It's not the complete answer, but it is a good starting point.
Thanks everyone for pitching in, much appreciated!
I have switched over to the batch file route and have created the following to accomplish my goal;
#echo off
setlocal
set _source="C:\users\user1\desktop\source"
set _dest="C:\users\user1\desktop\dest"
robocopy %_source% %_dest% *.bak /mir /XC /XN /XO
Any opinion on this script is encouraged!

Update context menu of all file extensions in Windows via powershell takes long time

Developing our own application for our company only, we have developed script used for installation from shared drive. Except the installation itself, the script should also create/update values in the registry of particular user (HKEY_CURRENT_USER).
These values are separated for:
Directories (HKCU:\Software\Classes\Directory)
All File Extensions (HKCU:\Software\Classes\*)
For the directory folder the update is immediate, where for the extensions it seems to take quite some time depending on machine hardware (from 40 sec to 2 minutes).
Now there is a trouble to create "entry" in the registry for the folder named * only. I've got a question for this to resolve (PowerShell: How do I create selector on file/folder, whose name is '*' (asterisk/star)?).
Ignoring the issue above, we have found some solution how the string path works, however I'm not sure what is happening behind the code and do not understand why it takes so long time.
# Directory
New-Item -Path "HKCU:\Software\classes\Directory" -Name "shell" | Out-Null
# All Files Extension
New-Item -Path "HKCU:\Software\classes\[*]" -Name "shell" | Out-Null
One idea is that the [*] solution actually goes through all the file extensions, but the registry itself is showing this NewItem under * folder and not shown under particular extensions:
Another idea about this, is when we have a registry file (*.reg), by running the file the registry entry is added immediately and resolve the case.
Questions:
What is actually happening when we are running the query to add entry under [*] selector?
How can be this process optimized to lower the time for creating new folder in registry for all files' extension?
I suspect what's happening is that the -Path in your New-Item call is recursive because of the wildcard. Hence the delay.
Here's a workaround to the issue:
Set-Location -LiteralPath "HKCU:\Software\classes\*"
New-Item -Name "shell"
New-Item uses the current location as the -Path if not explicitly passed to the function.

How to use short-cut paths to Compress-Archive to zip current folder into same destination

I am using Compress-Archive and want to zip the current directory into the same path. However I do not want to have to type out the entire file path both times. Is there an easy way to do this?
I am using windows 10 pro.
This works for the most part Compress-Archive . test.zip but I want it to be on the same level as the current directory so I need to put it back one spot.
Something like this is what I want:
path/test
path/test.zip
What I am getting:
path/test
path/test/test.zip
It is going inside the actual folder which is not what I want
You propably want that:
Compress-Archive * ..\test.zip
The wildcard * avoids that the name of the folder is put inside the zip.
Using .. for the output path we go one level up in the directory tree.
This command will fail if test.zip already exists. Either add parameter -update to update the archive or add -force to overwrite the archive. Both can be used even if the archive does not already exist.
If the current working directory is "t", it can be included using the following command. I would note that I do not think putting the destination .zip file in the directory being compressed is a good idea.
Compress-Archive -Path $(Get-ChildItem -Recurse -Exclude t.zip) -DestinationPath .\t.zip -Force
It is shorter if you are willing to use aliases and cryptic switches.
Compress-Archive $(gci -r -e t.zip) .\t.zip -Force
If I have misinterpreted your situation, please leave a comment or improve the information provided by editing the question.

How to step backwards in a path using Powershell

I am searching through folders in order to find the one that has the contents that I desire.
$path = dir "C:\windows\ccmcache\*\Office.en-us" -Directory
echo $path
It returns:
Directory: C:\windows\ccmcache\c
But when I run my command:
Start-Process "$path\setup.exe /uninstall ProPlus /config Uninstall.xml" -Wait
It tries to run:
C:\windows\ccmcache\c\Office.en-us\setup.exe............
Which doesn't exist! So how can I go back a step so I can run the setup.exe command out of the c folder?
Something like:
$path2 = $path\cd..
Thank you all in advance.
You can simply do:
$Path2 = Resolve-Path (Join-Path $Path '..')
Note:
Join-Path is the cross platform way of concatenating path strings
Resolve-Path will give you a fully qualified path name
^^ step is optional, since windows will traverse the .. for you, but it helps to visually see the folder it resolves to.
Does this help?
You are using Get-ChildItem to return a System.IO.DirectoryInfo object. The path you are looking for already exists there as the Parent property.
$path2 = $path.Parent.FullName
No other cmdlets are needed here. You don't even need to save it into another variable if you don't want to.
Beware that your $path could have multiple results which will have consequences later in your code. If you only cared about the first one you could add | Select -First 1 to guarantee only one result.
It can be done simply using Resolve-Path function.
suppose structure is like following
root
Folder1 Folder2
and our current working directory is Folder1 and we want to move to Folder2.
$path2 = Resolve-Path("$path\..\Folder2\fileinFolder2")
I'm not sure I completely understand what you're asking.. Do you mean how to backtrack in your file directory? That command is "cd .."
Do you mean how to call $path THEN move one level higher in the directory? If so you'll need to create a new $var that is one level higher before calling your setup.exe

Windows 10 - how to compress file without creating a parent folder

In Windows 10,
from power shell, I want to compress a folder without it creating a parent folder inside the zip file
currently I use:
Compress-Archive -Path . ../abc.zip
Is it possible to create the archive without the parent folder?
You might try this (didn't test it and I don't even have any window installed, so might not work):
gci c:\folder\* | Compress-Archive -DestinationPath c:\abc.zip

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