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I want to iterate over files in a folder using powershell script;
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If you have a text file with data you wish to use, you can use PowerShell Get-Content to list the contents of the file. Then use the PowerShell ForEach loop to iterate through the file line by line.
List the files in a Windows PowerShell directory. Like the Windows command line, Windows PowerShell can use the dir command to list files in the current directory. PowerShell can also use the ls and gci commands to list files in a different format.
PowerShell utilizes the “Get-ChildItem” command for listing files of a directory. The “dir” in the Windows command prompt and “Get-ChildItem” in PowerShell perform the same function.
Get-ChildItem cmdlet in PowerShell is used to get items in one or more specified locations. Using Get-ChildItem, you can find files. You can easily find files by name, and location, search file for string, or find file locations using a match pattern.
Get-ChildItem | ForEach-Object { <# do what you need to do #> }
or shorter:
gci | % { <# ... #> }
or if you want an explicit looping construct:
foreach ($file in Get-ChildItem) {
# ...
}
Note however, that foreach will only run once all output from Get-ChildItem is collected. In my opinion most Powershell code should use the pipeline as much as possible.
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