Parse directory listing and pass to another script? - powershell

I am trying to write a PowerShell script that will loop through a directory in C:\ drive and parse the filenames with the file extension to another script to use.
Basically, the output of the directory listing should be accessible to be parsed to another script one by one. The script is a compiling script which expects an argument (parameter) to be parsed to it in order to compile the specific module (filename).
Code:
Clear-Host $Path = "C:\SandBox\"
Get-ChildItem $Path -recurse -force | ForEach { If ($_.extension -eq ".cob")
{
Write-Host $_.fullname
}
}
If ($_.extension -eq ".pco")
{
Write-Host $_.fullname }
}

You don't need to parse the output as text, that's deprecated.
Here's something that might work for you:
# getmyfiles.ps1
Param( [string])$Path = Get-Location )
dir $Path -Recurse -Force | where {
$_.Extension -in #('.cob', '.pco')
}
# this is another script that calls the above
. getmyfile.ps1 -Path c:\sandbox | foreach-object {
# $_ is a file object. I'm just printing its full path but u can do other stuff eith it
Write-host $_.Fullname
}

Clear-Host
$Path = "C:\Sandbox\"
$Items = Get-ChildItem $Path -recurse -Include "*.cob", "*.pco"
From your garbled code am guessing you want to return a list of files that have .cob and .pco file extensions. You could use the above code to gather those.
$File = $Items.name
$FullName = $items.fullname
Write-Host $Items.name
$File
$FullName
Adding the above lines will allow you to display them in various ways. You can pick the one that suites your needs then loop through them on a for-each.
As a rule its not a place for code to be writen for you, but you have tried to add some to the questions so I've taken a look. Sometimes you just want a nudge in the right direction.

Related

How to pipe Rename-Item into Move-Item (powershell)

I'm in the process of writing up a PowerShell script that can take a bunch of .TIF images, rename them, and place them in a new folder structure depending on the original file name.
For example, a folder containing the file named:
ABC-ALL-210316-0001-3001-0001-1-CheckInvoice-Front.TIF
would be renamed to "00011CIF.TIF", and placed in the following folder:
\20220316\03163001\
I've been trying to put together a code to perform this task, and I got one to work where I had two different "ForEach" methods. One would do a bunch of file renaming to remove "-" and shorten "CheckInvoiceFront" to "CIF" and such. Then the second method would again pull all .TIF images, create substrings of the image names, and create folders from those substrings, and then move the image to the new folder, shortening the file name. Like I said, it worked... but I wanted to combine the ForEach methods into one process. However, each time I try to run it, it fails for various reasons... I've tried to change things around, but I just can't seem to get it to work.
Here's the current (non-working) code:
# Prompt user for directory to search through
$sorDirectory = Read-Host -Prompt 'Input source directory to search for images: '
$desDirectory = Read-Host -Prompt 'Input target directory to output folders: '
Set-Location $sorDirectory
# Check directory for TIF images, and close if none are found
Write-Host "Scanning "$sorDirectory" for images... "
$imageCheck = Get-ChildItem -File -Recurse -Path $sorDirectory -include '*.tif'
$imageCount = $imageCheck.count
if ($imageCount -gt 0) {
Write-Host "Total number of images found: $imageCount"
""
Read-Host -Prompt "Press ENTER to continue or CTRL+C to quit"
$count1=1;
# Rename all images, removing "ABCALL" from the start and inserting "20", and then shorten long filetype names, and move files to new folders with new names
Clear-Host
Write-Host "Reformatting images for processing..."
""
Get-ChildItem -File -Recurse -Path $sorDirectory -include '*.tif' |
ForEach-Object {
Write-Progress -Activity "Total Formatted Images: $count1/$imageCount" -Status "0--------10%--------20%--------30%--------40%--------50%--------60%--------70%--------80%--------90%-------100" -CurrentOperation $_ -PercentComplete (($count1 / $imageCount) * 100)
Rename-Item $_ -NewName $_.Name.Replace("-", "").Replace("ABCALL", "20").Replace("CheckInvoiceFront", "CIF").Replace("CheckInvoiceBack", "CIB").Replace("CheckFront", "CF").Replace("CheckBack", "CB") |Out-Null
$year = $_.Name.SubString(0, 4)
$monthday = $_.Name.Substring(4,4)
$batch = $_.Name.SubString(12, 4)
$fulldate = $year+$monthday
$datebatch = $monthday+$batch
$image = $_.Name.SubString(16)
$fullPath = "$desDirectory\$fulldate\$datebatch"
if (-not (Test-Path $fullPath)) { mkdir $fullPath |Out-Null }
Move-Item $_ -Destination "$fullPath\$image" |Out-Null
$count1++
}
# Finished
Clear-Host
Write-Host "Job complete!"
Timeout /T -1
}
# Closes if no images are found (likely bad path)
else {
Write-Host "There were no images in the selected folder. Now closing..."
Timeout /T 10
Exit
}
Usually this results in an error stating that it's can't find the path of the original file name, as if it's still looking for the original non-renamed image. I tried adding some other things, but then it said I was passing null values. I'm just not sure what I'm doing wrong.
Note that if I take the everything after the "Rename-Item" (starting with "$year =") and have that in a different ForEach method, it works. I guess I just don't know how to make the Rename-Item return its results back to "$_" before everything else tries working on it. I tried messing around with "-PassThru" but I don't think I was doing it right.
Any suggestions?
As Olaf points out, situationally you may not need both a Rename-Item and a Move-Item call, because Move-Item can rename and move in single operation.
That said, Move-Item does not support implicit creation of the target directory to move a file to, so in your case you do need separate calls.
You can use Rename-Item's -PassThru switch to make it output a System.IO.FileInfo instance (or, if a directory is being renamed, a System.IO.DirectoryInfo instance) representing the already renamed file; you can directly pass such an instance to Move-Item via the pipeline:
Get-ChildItem -File -Recurse -Path $sorDirectory -include '*.tif' |
ForEach-Object {
# ...
# Use -PassThru with Rename-Item to output a file-info object describing
# the already renamed file.
$renamedFile = $_ | Rename-Item -PassThru -NewName $_.Name.Replace("-", "").Replace("ABCALL", "20").Replace("CheckInvoiceFront", "CIF").Replace("CheckInvoiceBack", "CIB").Replace("CheckFront", "CF").Replace("CheckBack", "CB")
# ...
# Pass $renamedFile to Move-Item via the pipeline.
$renamedFile | Move-Item -Destination "$fullPath\$image"
# ...
}
As for your desire to:
make the Rename-Item return its results back to "$_"
While PowerShell doesn't prevent you from modifying the automatic $_ variable, it is better to treat automatic variables as read-only.
Therefore, a custom variable is used above to store the output from Rename-Item -PassThru
You need -passthru and -destination:
rename-item file1 file2 -PassThru | move-item -Destination dir1

Powershell: Logging foreach changes

I have put together a script inspired from a number of sources. The purpose of the powershell script is to scan a directory for files (.SQL), copy all of it to a new directory (retain the original), and scan each file against a list file (CSV format - containing 2 columns: OldValue,NewValue), and replace any strings that matches. What works: moving, modifying, log creation.
What doesn't work:
Recording in the .log for the changes made by the script.
Sample usage: .\ConvertSQL.ps1 -List .\EVar.csv -Files \SQLFiles\Rel_1
Param (
[String]$List = "*.csv",
[String]$Files = "*.sql"
)
function Get-TimeStamp {
return "[{0:dd/MM/yyyy} {0:HH:mm:ss}]" -f (Get-Date)
}
$CustomFiles = "$Files\CUSTOMISED"
IF (-Not (Test-Path $CustomFiles))
{
MD -Path $CustomFiles
}
Copy-Item "$Files\*.sql" -Recurse -Destination "$CustomFiles"
$ReplacementList = Import-Csv $List;
Get-ChildItem $CustomFiles |
ForEach-Object {
$LogFile = "$CustomFiles\$_.$(Get-Date -Format dd_MM_yyyy).log"
Write-Output "$_ has been modified on $(Get-TimeStamp)." | Out-File "$LogFile"
$Content = Get-Content -Path $_.FullName;
foreach ($ReplacementItem in $ReplacementList)
{
$Content = $Content.Replace($ReplacementItem.OldValue, $ReplacementItem.NewValue)
}
Set-Content -Path $_.FullName -Value $Content
}
Thank you very much.
Edit: I've cleaned up a bit and removed my test logging files.
Here's the snippet of code that I've been testing with little success. I put the following right under $Content= Content.Replace($ReplacementItem.OldValue, $ReplacementItem.NewValue)
if ( $_.FullName -like '*TEST*' ) {
"This is a test." | Add-Content $LogFile
}
I've also tried to pipe out the Set-Content using Out-File. The outputs I end up with are either a full copy of the contents of my CSV file or the SQL file itself. I'll continue reading up on different methods. I simply want to, out of hundreds to a thousand or so lines, to be able to identify what variables in the SQL has been changed.
Instead of piping output to Add-Content, pipe the log output to: Out-File -Append
Edit: compare the content using the Compare-Object cmdlet and evaluate it's ouput to identify where the content in each string object differs.

How can I select a particular function to run based on a filename using Powershell?

I have a function that will change the filename and move it to a specific computer. The function is duplicated for another computer, so I now have two specific functions for each filename. I can't seem to figure out how to get the script to choose the function I want it to use. Here is what I've tried with no luck:
$files = dir -Path \\server\PPTV\*\*.* -Include atrium.*, clirel.* -Recurse {
(If ($file.FullName -eq "atrium.*" | Rename-Copy-Atrium),
(If ($file.FullName -eq "clirel.*" | Rename-Copy-Clirel)))
}
How can I get this to pipe to the function and run? Rename-Copy-Atrium for example is one of the function names.
The proper syntax for an if() statement in powershell is:
if([condition])
{
[execute this code]
}
So you would want to do something like:
$files = dir -Path \\server\PPTV\*\*.* -Include atrium.*, clirel.* -Recurse
foreach($file in $files)
{
if($file.FullName -like "atrium.*")
{
# I assume the function takes a fileinfo object as a parameter argument
Rename-Copy-Atrium $file
}
elseif($file.FullName -like "clirel.*")
{
Rename-Copy-Clirel $file
}
}

How to use an array in a zip function using powershell?

I am still pretty new to scripting and "programming" at all. if you miss any information here let me know.
This is my working zip function:
$folder = "C:\zipthis\"
$destinationFilePath = "C:\_archive\zipped"
function create-7zip{
param([string] $folder,
[String] $destinationFilePath)
write-host $folder $destinationFilePath
[string]$pathToZipExe = "C:\Program Files (x86)\7-Zip\7zG.exe";
[Array]$arguments = "a", "-tzip", "$destinationFilePath", "$folder";
& $pathToZipExe $arguments;
}
Get-ChildItem $folder | ? { $_.PSIsContainer} | % {
write-host $_.BaseName $_.Name;
$dest= [System.String]::Concat($destPath,$_.Name,".zip");
(create-7zip $_.FullName $dest)
}
create-7zip $folder $destinationFilePath
now I want him to zip special folders which I already sorted out :
get-childitem "C:\zipme\" | where-Object {$_.name -eq "www" -or $_.name -eq "sql" -or $_.name -eq "services"}
This small function finds the 3 folders I need called www, sql and services. But I didn't manage to insert this into my zip function, so that exactly this folders are zipped and put into C:\_archive\zipped
Because a string is used instead of an array, he tried always to look for a folder called wwwsqlservice which is not there. I tried to put an array using #(www,sql,services) but i had no success, so whats the right way, if there is one?
It should compatible with powershell 2.0, no ps3.0 cmdlets or functions please.
thanks in advance!
Here's a really simple example of what you want to do, removed from the context of your function. It assumes that your destination folders already exist (You can just use Test-Path and New-Item to create them if they don't), and that you're using 7z.exe.
$directories = #("www","sql","services")
$archiveType = "-tzip"
foreach($dir in $directories)
{
# Use $dir to update the destination each loop to prevent overwrites!
$sourceFilePath = "mySourcePath\$dir"
$destinationFilePath = "myTargetPath\$dir"
cmd /c "$pathToZipExe a $archiveType $destinationFilePath $sourceFilePath"
}
Overall it looks like you got pretty close to a solution, with some minor changes needed to support the foreach loop. If you're confident that create-7zip works fine for a single folder, you can substitute that for the cmd /c line above. Here's a listing of some handy example usages for 7zip on the command line.

How to retrieve a recursive directory and file list from PowerShell excluding some files and folders?

I want to write a PowerShell script that will recursively search a directory, but exclude specified files (for example, *.log, and myFile.txt), and also exclude specified directories, and their contents (for example, myDir and all files and folders below myDir).
I have been working with the Get-ChildItem CmdLet, and the Where-Object CmdLet, but I cannot seem to get this exact behavior.
I like Keith Hill's answer except it has a bug that prevents it from recursing past two levels. These commands manifest the bug:
New-Item level1/level2/level3/level4/foobar.txt -Force -ItemType file
cd level1
GetFiles . xyz | % { $_.fullname }
With Hill's original code you get this:
...\level1\level2
...\level1\level2\level3
Here is a corrected, and slightly refactored, version:
function GetFiles($path = $pwd, [string[]]$exclude)
{
foreach ($item in Get-ChildItem $path)
{
if ($exclude | Where {$item -like $_}) { continue }
$item
if (Test-Path $item.FullName -PathType Container)
{
GetFiles $item.FullName $exclude
}
}
}
With that bug fix in place you get this corrected output:
...\level1\level2
...\level1\level2\level3
...\level1\level2\level3\level4
...\level1\level2\level3\level4\foobar.txt
I also like ajk's answer for conciseness though, as he points out, it is less efficient. The reason it is less efficient, by the way, is because Hill's algorithm stops traversing a subtree when it finds a prune target while ajk's continues. But ajk's answer also suffers from a flaw, one I call the ancestor trap. Consider a path such as this that includes the same path component (i.e. subdir2) twice:
\usr\testdir\subdir2\child\grandchild\subdir2\doc
Set your location somewhere in between, e.g. cd \usr\testdir\subdir2\child, then run ajk's algorithm to filter out the lower subdir2 and you will get no output at all, i.e. it filters out everything because of the presence of subdir2 higher in the path. This is a corner case, though, and not likely to be hit often, so I would not rule out ajk's solution due to this one issue.
Nonetheless, I offer here a third alternative, one that does not have either of the above two bugs. Here is the basic algorithm, complete with a convenience definition for the path or paths to prune--you need only modify $excludeList to your own set of targets to use it:
$excludeList = #("stuff","bin","obj*")
Get-ChildItem -Recurse | % {
$pathParts = $_.FullName.substring($pwd.path.Length + 1).split("\");
if ( ! ($excludeList | where { $pathParts -like $_ } ) ) { $_ }
}
My algorithm is reasonably concise but, like ajk's, it is less efficient than Hill's (for the same reason: it does not stop traversing subtrees at prune targets). However, my code has an important advantage over Hill's--it can pipeline! It is therefore amenable to fit into a filter chain to make a custom version of Get-ChildItem while Hill's recursive algorithm, through no fault of its own, cannot. ajk's algorithm can be adapted to pipeline use as well, but specifying the item or items to exclude is not as clean, being embedded in a regular expression rather than a simple list of items that I have used.
I have packaged my tree pruning code into an enhanced version of Get-ChildItem. Aside from my rather unimaginative name--Get-EnhancedChildItem--I am excited about it and have included it in my open source Powershell library. It includes several other new capabilities besides tree pruning. Furthermore, the code is designed to be extensible: if you want to add a new filtering capability, it is straightforward to do. Essentially, Get-ChildItem is called first, and pipelined into each successive filter that you activate via command parameters. Thus something like this...
Get-EnhancedChildItem –Recurse –Force –Svn
–Exclude *.txt –ExcludeTree doc*,man -FullName -Verbose
... is converted internally into this:
Get-ChildItem | FilterExcludeTree | FilterSvn | FilterFullName
Each filter must conform to certain rules: accepting FileInfo and DirectoryInfo objects as inputs, generating the same as outputs, and using stdin and stdout so it may be inserted in a pipeline. Here is the same code refactored to fit these rules:
filter FilterExcludeTree()
{
$target = $_
Coalesce-Args $Path "." | % {
$canonicalPath = (Get-Item $_).FullName
if ($target.FullName.StartsWith($canonicalPath)) {
$pathParts = $target.FullName.substring($canonicalPath.Length + 1).split("\");
if ( ! ($excludeList | where { $pathParts -like $_ } ) ) { $target }
}
}
}
The only additional piece here is the Coalesce-Args function (found in this post by Keith Dahlby), which merely sends the current directory down the pipe in the event that the invocation did not specify any paths.
Because this answer is getting somewhat lengthy, rather than go into further detail about this filter, I refer the interested reader to my recently published article on Simple-Talk.com entitled Practical PowerShell: Pruning File Trees and Extending Cmdlets where I discuss Get-EnhancedChildItem at even greater length. One last thing I will mention, though, is another function in my open source library, New-FileTree, that lets you generate a dummy file tree for testing purposes so you can exercise any of the above algorithms. And when you are experimenting with any of these, I recommend piping to % { $_.fullname } as I did in the very first code fragment for more useful output to examine.
The Get-ChildItem cmdlet has an -Exclude parameter that is tempting to use but it doesn't work for filtering out entire directories from what I can tell. Try something like this:
function GetFiles($path = $pwd, [string[]]$exclude)
{
foreach ($item in Get-ChildItem $path)
{
if ($exclude | Where {$item -like $_}) { continue }
if (Test-Path $item.FullName -PathType Container)
{
$item
GetFiles $item.FullName $exclude
}
else
{
$item
}
}
}
Here's another option, which is less efficient but more concise. It's how I generally handle this sort of problem:
Get-ChildItem -Recurse .\targetdir -Exclude *.log |
Where-Object { $_.FullName -notmatch '\\excludedir($|\\)' }
The \\excludedir($|\\)' expression allows you to exclude the directory and its contents at the same time.
Update: Please check the excellent answer from msorens for an edge case flaw with this approach, and a much more fleshed out solution overall.
Recently, I explored the possibilities to parameterize the folder to scan through and the place where the result of recursive scan will be stored. At the end, I also did summarize the number of folders scanned and number of files inside as well. Sharing it with community in case it may help other developers.
##Script Starts
#read folder to scan and file location to be placed
$whichFolder = Read-Host -Prompt 'Which folder to Scan?'
$whereToPlaceReport = Read-Host -Prompt 'Where to place Report'
$totalFolders = 1
$totalFiles = 0
Write-Host "Process started..."
#IMP separator ? : used as a file in window cannot contain this special character in the file name
#Get Foldernames into Variable for ForEach Loop
$DFSFolders = get-childitem -path $whichFolder | where-object {$_.Psiscontainer -eq "True"} |select-object name ,fullName
#Below Logic for Main Folder
$mainFiles = get-childitem -path "C:\Users\User\Desktop" -file
("Folder Path" + "?" + "Folder Name" + "?" + "File Name " + "?"+ "File Length" )| out-file "$whereToPlaceReport\Report.csv" -Append
#Loop through folders in main Directory
foreach($file in $mainFiles)
{
$totalFiles = $totalFiles + 1
("C:\Users\User\Desktop" + "?" + "Main Folder" + "?"+ $file.name + "?" + $file.length ) | out-file "$whereToPlaceReport\Report.csv" -Append
}
foreach ($DFSfolder in $DFSfolders)
{
#write the folder name in begining
$totalFolders = $totalFolders + 1
write-host " Reading folder C:\Users\User\Desktop\$($DFSfolder.name)"
#$DFSfolder.fullName | out-file "C:\Users\User\Desktop\PoC powershell\ok2.csv" -Append
#For Each Folder obtain objects in a specified directory, recurse then filter for .sft file type, obtain the filename, then group, sort and eventually show the file name and total incidences of it.
$files = get-childitem -path "$whichFolder\$($DFSfolder.name)" -recurse
foreach($file in $files)
{
$totalFiles = $totalFiles + 1
($DFSfolder.fullName + "?" + $DFSfolder.name + "?"+ $file.name + "?" + $file.length ) | out-file "$whereToPlaceReport\Report.csv" -Append
}
}
# If running in the console, wait for input before closing.
if ($Host.Name -eq "ConsoleHost")
{
Write-Host ""
Write-Host ""
Write-Host ""
Write-Host " **Summary**" -ForegroundColor Red
Write-Host " ------------" -ForegroundColor Red
Write-Host " Total Folders Scanned = $totalFolders " -ForegroundColor Green
Write-Host " Total Files Scanned = $totalFiles " -ForegroundColor Green
Write-Host ""
Write-Host ""
Write-Host "I have done my Job,Press any key to exit" -ForegroundColor white
$Host.UI.RawUI.FlushInputBuffer() # Make sure buffered input doesn't "press a key" and skip the ReadKey().
$Host.UI.RawUI.ReadKey("NoEcho,IncludeKeyUp") > $null
}
##Output
##Bat Code to run above powershell command
#ECHO OFF
SET ThisScriptsDirectory=%~dp0
SET PowerShellScriptPath=%ThisScriptsDirectory%MyPowerShellScript.ps1
PowerShell -NoProfile -ExecutionPolicy Bypass -Command "& {Start-Process PowerShell -ArgumentList '-NoProfile -ExecutionPolicy Bypass -File ""%PowerShellScriptPath%""' -Verb RunAs}";
A bit late, but try this one.
function Set-Files($Path) {
if(Test-Path $Path -PathType Leaf) {
# Do any logic on file
Write-Host $Path
return
}
if(Test-Path $path -PathType Container) {
# Do any logic on folder use exclude on get-childitem
# cycle again
Get-ChildItem -Path $path | foreach { Set-Files -Path $_.FullName }
}
}
# call
Set-Files -Path 'D:\myFolder'
Commenting here as this seems to be the most popular answer on the subject for searching for files whilst excluding certain directories in powershell.
To avoid issues with post filtering of results (i.e. avoiding permission issues etc), I only needed to filter out top level directories and that is all this example is based on, so whilst this example doesn't filter child directory names, it could very easily be made recursive to support this, if you were so inclined.
Quick breakdown of how the snippet works
$folders << Uses Get-Childitem to query the file system and perform folder exclusion
$file << The pattern of the file I am looking for
foreach << Iterates the $folders variable performing a recursive search using the Get-Childitem command
$folders = Get-ChildItem -Path C:\ -Directory -Name -Exclude Folder1,"Folder 2"
$file = "*filenametosearchfor*.extension"
foreach ($folder in $folders) {
Get-Childitem -Path "C:/$folder" -Recurse -Filter $file | ForEach-Object { Write-Output $_.FullName }
}