Capitalize the first letter of each word in a filename with powershell

Question

I want to change the names of some files automatically.

With this code I change the lowercase letters to uppercase:

get-childitem *.mp3 | foreach { if ($.Name -cne $.Name.ToUpper()) { ren $.FullName $.Name.ToUpper() } }

But I only want the first letter of each word to be uppercase.

score 63 · Accepted Answer · edited Feb 15 '20 at 19:47

63

You can use ToTitleCase Method:

$TextInfo = (Get-Culture).TextInfo
$TextInfo.ToTitleCase("one two three")

outputs

One Two Three

$TextInfo = (Get-Culture).TextInfo
get-childitem *.mp3 | foreach { $NewName = $TextInfo.ToTitleCase($_); ren $_.FullName $NewName }

edited Feb 15 '20 at 19:47

Bakudan

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answered Mar 27 '14 at 17:23

Klark

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Thanks, the link is for c#, I wonder why there is no doc on Powershell about the Get-culture Object. – Timo Nov 23 '20 at 07:36
1

Sadly, it also changes "oneTwoThree" into "Onetwothree". Boo! – Patrick Szalapski Jan 25 '21 at 21:55

score 8 · Answer 2 · answered Jun 03 '20 at 22:13

8

My answer is very similar, but I wanted to provide a one-line solution. This also forces the text to lowercase before forcing title case. (otherwise, only the first letter is effected)

$text = 'one TWO thrEE'
( Get-Culture ).TextInfo.ToTitleCase( $text.ToLower() )

Output:

One Two Three

answered Jun 03 '20 at 22:13

Rob Traynere

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If anyone knows how to do this by instantiating an enum method, PLEASE let me know. ie: [TextInfo]::ToTitleCase($text) – Rob Traynere Jun 03 '20 at 22:15
1

You don't have to lowerise. I tried in PS v5.1 and it converts "rEStarT" to "Restart" without `ToLower` call. – IgorStack Nov 02 '22 at 01:39

score 4 · Answer 3 · answered Mar 27 '14 at 17:25

Yup, it's built into Get-Culture.

gci *.mp3|%{
    $NewName = (Get-Culture).TextInfo.ToTitleCase($_.Name)
    $NewFullName = join-path $_.directory -child $NewName
    $_.MoveTo($NewFullName)
}

Yeah, it could be shortened to one line, but it gets really long and is harder to read.

score 2 · Answer 4 · edited Jul 23 '20 at 09:07

2

There you go

[cultureinfo]::GetCultureInfo("en-US").TextInfo.ToTitleCase("what is my name?")

edited Jul 23 '20 at 09:07

JonC

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answered Jul 23 '20 at 08:44

Fatman

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thanks a ton! also recommend modifying the text with .ToLower() like "whAT IS my NAME?".ToLower(), or else it will not convert to Title Case if all letters in the word are capitalized. – Rob Traynere Oct 14 '20 at 16:12

Capitalize the first letter of each word in a filename with powershell

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