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43 lines
1.4 KiB
PowerShell
43 lines
1.4 KiB
PowerShell
<#
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.SYNOPSIS
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Rename files with a specified extension in a folder, padding the numeric part with zeros.
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.PARAMETER ext
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The extension of the files to rename, without the dot. Default is "md".
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.PARAMETER Numeral
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If specified, the files will be renamed in the order of their numeric part.
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.EXAMPLE
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Rename-FilesWithZeroPadding.ps1 -ext "txt"
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Renames all files with the extension "txt" in the current folder, padding the numeric part with zeros.
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For example: '1.txt', '2.txt', ... '12.txt' -> '01.txt', '02.txt', ... '12.txt'.
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.EXAMPLE
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Rename-FilesWithZeroPadding.ps1 -Numeral # This set the Numeral switch to false
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Renames all files with the default extension "md" in the current folder, in the order of their filenames.
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For example: 'file1.md', 'file2.md', ... 'file12.md' -> '01.md', '02.md', ... '12.md'.
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#>
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param(
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[string]$ext = "md",
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[switch]$Numeral
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)
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if ($Numeral) {
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$files = $files | Sort-Object { [int]($_.BaseName -replace '\D', '') }
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}
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else {
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$files = Get-ChildItem -Filter "*.$ext" | Sort-Object Name
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$fnamecnt = 1
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}
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$cnt = $files.Count
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$paddingLength = $cnt.ToString().Length
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foreach ($file in $files) {
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if ($Numeral) {
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$number = [int]($file.BaseName -replace '\D', '')
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$newNumber = $number.ToString().PadLeft($paddingLength, '0')
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$newName = "$newNumber.$ext"
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}
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else {
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$newName = ($fnamecnt++).ToString().PadLeft($paddingLength, '0') + ".$ext"
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}
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Rename-Item -Path $file.FullName -NewName $newName
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}
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