How to do looping to rename and read a file using PowerShell? - powershell

Question

I have many files in a folder with the same extension file. I want to rename the file one by one then do the other process, which is Proc_After_Rename. In this process, I will read some information of the file. In this process, I want to read the information of the file one by one based on the previous process to rename the extension file name. After I finish do the process, then I pick again the file to rename and do the process.
For now, I can rename the file, but it rename it all the files directly before I do the other process. ANf when I go to this process Proc_After_Rename, I read the information for all the file, because all the file already rename the extension. Anyone can help, please
UPDATED
Function Proc_After_Rename
{
$Path = "C:\Users\SS\PowerShell\"
Write-Host "Do some process with .pro file"
$Job_Info = Get-ChildItem -Path "$store\*.ini" -File -Force
& $Path\UIni.exe $Job_Info AGM CRM AGM_CUR_CRM AGM_CUR_CRM.CMD #this how I read the .ini file
start-sleep -s 1
$Read_AGM_CUR_CRM = Get-Content .\AGM_CUR_CRM.CMD
$a_AGM_CUR_CRM,$b_AGM_CUR_CRM = $Read_AGM_CUR_CRM -split "="
$b_AGM_CUR_CRM
Pick_file
}
Function Pick_file
{
$WKFD= "C:\Users\SS\PowerShell\"
$store = "$WKFD\GM"
$files = #(Get-ChildItem -Path "$store\*.txt")
Foreach ($file in $files)
{
# Check file existence
if (Test-Path -Path $file -PathType Leaf)
{
# Get file name from object path file $file
$file_name = #(Get-ChildItem -Path "$file" -Name)
# Replace the .cue with .pro
$new_name = $file_name -replace ".txt", ".ini"
# Rename the file
Rename-Item -Path $file -NewName "$new_name"
}
Proc_After_Rename
}
}
$A = Pick_file

Answer 1

With the Get-ChildItem cmdlet, you can iterate the results easily by directly piping them through to a Foreach-Object. Inside that loop, every file found is a FileInfo object, represented by the automatic variable $_.
Using the -Filter parameter the below code gets only files with a *.txt extension and by adding the -File switch you only recieve FileInfo objects, not Directory objects.
If I understand the question correctly, you want to first rename each *.txt file to *.ini and then do some more stuff with the renamed file. This should do it:
$store = "C:\Users\HH"
Get-ChildItem -Path $store -Filter '*.txt' -File | ForEach-Object {
# the automatic variable '$_' here represents a single FileInfo object in the list.
# you don't need to test if the file exists, if it doesn't, Get-ChildItem would not return it.
# create the new name for the file. Simply change the extension to '.ini'
$newName = '{0}.ini' -f $_.BaseName
# rename the file and get a reference to it using the -PassThru parameter
$renamedFile = $_ | Rename-Item -NewName $newName -PassThru
# for testing/proof:
# remember that the '$_' variable now has old file name info.
Write-Host ("File '{0}' is now renamed to '{1}'" -f $_.FullName, $renamedFile.FullName)
# now do the rest of your processing, using the $renamedFile FileInfo object.
# you can see what properties and methods a FileInfo object has here:
# https://learn.microsoft.com/en-us/dotnet/api/system.io.fileinfo?view=netframework-4.8#properties
# to get the full path and filename for instance, use $renamedFile.FullName
# ........ #
}
Hope that helps

Answer 2

# Rename the file
Rename-Item -Path $file -NewName "$new_name"
# path of the renamed file
$new_path_file = "$store\$new_name"
# This is the process after rename the file
# ........ #
#Put your process here and make sure you reference the new file, as long as its in
#the foreach you are good.
}
}

Answer 3

One problem with your code is the Get-ChildItem inside Proc_After_Rename. This presents UIni with a list of files instead of a file. I have tried to fix this problem by reworking your code, and sliding part of Proc_After_Rename into Pick_File. I haven't tested any of this, but I hope it gives you a better idea of how to organize your code.
If I were writing this from scratch, I would use pipelines.
Function Pick_file
{
$WKFD= "C:\Users\SS\PowerShell\"
$store = "$WKFD\GM"
$files = #(Get-ChildItem -Path "$store\*.txt")
Foreach ($file in $files)
{
# Check file existence
if (Test-Path -Path $file -PathType Leaf)
{
# Get file name from object path file $file
$file_name = #(Get-ChildItem -Path "$file" -Name)
# Replace the .cue with .pro
$new_name = $file_name -replace ".txt", ".ini"
# Rename the file
Rename-Item -Path $file -NewName "$new_name"
$new_file_name = $file.fullname
& $Path\UIni.exe $new_file_name AGM CRM AGM_CUR_CRM AGM_CUR_CRM.CMD
#this how I read the .ini file
start-sleep -s 1
$Read_AGM_CUR_CRM = Get-Content .\AGM_CUR_CRM.CMD
$a_AGM_CUR_CRM,$b_AGM_CUR_CRM = $Read_AGM_CUR_CRM -split "="
$b_AGM_CUR_CRM
}
}
}
$A = Pick_file