I'm trying to rename a bunch of files using powershell by removing the prefix (which is the same in all files), replacing "+" with a space and setting the remainder to title case. Here's what I have so far:
Where-Object { $_ -Match '^Website\.com_+' } |
ForEach-Object
{
$_ |
Rename-Item -NewName {$_.Name -replace 'Website\.com_','' -replace '\+',' '};
Rename-Item $_.Fullname (Get-Culture).TextInfo.ToTitleCase($_)
}
The first rename works, it removes and formats files properly, but then the second rename says the items don't exist, which makes me think I should just then pass them into another foreach loop in another pipe, but I can't seem to make that work either.
It seems like having 2 rename-items isn't really working and I tried having the title case with the replace and it doesn't seem to work either.
It would be more straight forward to build the name in 2 stages and then do one Rename-Item
Something like below should do what you need
Where-Object { $_ -Match '^Website\.com_+' } |
ForEach-Object {
$BaseName = ($_.Name -replace 'website\.com','' -replace '\+','')
$FinalName = (Get-Culture).TextInfo.ToTitleCase($BaseName)
Rename-Item $_.FullName -NewName $FinalName
}
$_ in your ForEach-Object loop is a snapshot of the item - it won't dynamically change to follow things you do to the underlying file. When you rename the item, $_ represents the old name. So, when you attempt the second rename based on $_.FullName, Rename-Item won't find anything.
A potential solution to your problem of "setting the remainder to title case" would be, outside the loop, do another Get-ChildItem search for anything that falls into this condition, and then rename them separately.
Finally found something that works:
$path = "G:\Downloads\Chrome\test2"
$items = (Get-ChildItem -Path $path -File *.mp4 |
Where-Object { $_ -Match '^Website\.com_+' } |
ForEach-Object{
$_ |
Rename-Item -NewName {$_.Name -replace 'Website\.com_','' -replace '\+',' '} -PassThru
})
$items | % {
Rename-Item -Path $_.FullName -NewName (Get-Culture).TextInfo.ToTitleCase($_.Name)
}
Thanks to everyone who tried to help me!
Related
I have modified several thousand files with a various things requested by the owners.
Now, I need to add one final thing and I am not 100% on how to do it.
Scenario is as follows - all files have a 10 digit number at the start, I need to add a hyphen after the number. String is a variable but it is always the same length.
1234567890abcdefgh.xls would be an example
I have used GCI to make changes to symbols and static parts but not sure how to call for insertion in a specific place of a file (after the 10th character of a variable string)
Any ideas would be most welcome!
You can use the $matches you get from the capturing groups of a -match comparison:
(Get-ChildItem -Path 'X:\WhereTheFilesAre' -File) |
Where-Object { $_.BaseName -match '^(\d{10})([^-].*)' } |
Rename-Item -NewName { '{0}-{1}{2}' -f $matches[1], $matches[2], $_.Extension }
or by using the Substring() method:
(Get-ChildItem -Path 'X:\WhereTheFilesAre' -File) |
Where-Object { $_.BaseName -match '^\d{10}[^-]' } |
Rename-Item -NewName { $_.Name.Substring(0,10) + '-' + $_.Name.Substring(10) }
or use the regex -replace operator:
(Get-ChildItem -Path 'X:\WhereTheFilesAre' -File) |
Where-Object { $_.BaseName -match '^\d{10}[^-]' } |
Rename-Item -NewName { $_.Name -replace '^(\d{10})', '$1-' }
You can use string.Insert() to insert a string into another at a specific offset:
PS ~> '1234567890abcdefgh.xls'.Insert(10, '-')
1234567890-abcdefgh.xls
To apply to all files in a directory, you could do something like this:
Get-ChildItem -File |Where-Object Name -match '^\d{10}[^-]' |Rename-Item -NewName { $_.Name.Insert(10, '-') }
The regular expression pattern ^\d{10}[^-] will only match file names that start with 10 digits followed by something other than a hyphen (to avoid renaming files that already comply with the naming convention)
I need to limit the files affected to Example*.pdf. The files have 1-3 digits in the names and I need to standardize them. So Example_1.pdf -> Example_001.pdf while Example_100.pdf -> Example_100.pdf
The first part renamed files to Example.1.pdf so I could parse them with a single delimiter, but it gave me errors on the second step (cmdlet rename-item at command pipeline position 1 supply values for the following parameters: path)
Get-ChildItem of* | rename-item -newname { $_.Name -replace '_','.' }
Get-ChildItem of* |
foreach {
$nameArray = $_.Split('.')
$ExampleNumber = $nameArray[1]
rename-item -path $Path -newname $nameArray[0]+$ExampleNumber+$nameArray[2]
}
But if I can get something like this to work then I can play around with $ExampleNumber
Then I tried using regular expressions. Had this worked it would have padded the single digit files and then I could make a second pass for double digit files. But it didn't rename anything.
Get-ChildItem ex* | rename-item -newname { $_ -replace '(.*)(\d{1})\.pdf', 'Example_0$2.pdf'}
Any help is appreciated.
Note the $_ inside the -NewName block is of type FileInfo.
Here's my suggestion:
Get-ChildItem ex* | Rename-Item -NewName {
[void]($_.Name -match "\d+")
$_.Name -replace "\d+", (([int]$Matches[0]).ToString("000"))
}
Or alternatively:
Get-ChildItem ex* |
Rename-Item -NewName {
$_.Name -replace "\d+", (([int][regex]::match($_.Name, "\d+").value).ToString("000"))}
Example "rename multiple files" gives us this:
Get-ChildItem *.txt | Rename-Item -NewName { $_.Name -replace '.txt','.log' }
But I need something like this:
Get-ChildItem *.txt | Rename-Item -NewName { $_.Name -replace '.txt','someArray[$i]' }
How can I do that ?
Simple. Take the quotes off and add a $:
EDIT: Ok, here's my guess. I don't know what $textfile is, or what result you want exactly. [^.jpg] just means any character except those 4.
get-childitem *.jpg |
Foreach {$i=0} {Rename-Item $_ -NewName ($_.name -replace 'jpg', $textfile[$i++]) -whatif}
How to rename bunch of files in windows using powershell.
Example of filenames:
Image001 L#ter
Image002 L#ter
I have tried these two commands ,
get-childitem * | ForEach { Move-Item -LiteralPath $_.name $_.name.Replace("L#ter","")}
get-childitem * | ForEach { rename-item $_ $_.Name.Replace("L#ter","") }
I expect the output to be as Image001,Image002
Your question says to rename, but your code samples are using the Move-Item command. I am going to assume you were unsure hot to rename them correctly as you weren't actually moving them.
Get-ChildItem "C:\Temp\" -File | ForEach-Object {
Rename-Item -Path $_.FullName -NewName "$($_.Name -replace '\s*(l#ster)')"
}
The \s* will match any whitespace before your main capturing group
The (l#ster) is the main capture group, it looks for that exact phrase and will match it.
This is a frequent category of question. I like to use rename-item with a scriptblock. Take off the -whatif if it looks right. I'm assuming you don't want the space at the end of the names.
ls '* l#ter' | rename-item -newname { $_.name -replace ' l#ter' } -whatif
first, some small details about your commands:
get-childitem * | ForEach { Move-Item -LiteralPath $_.name $_.name.Replace("L#ter","")}
LiteralPath is meant to be used used exactly as it is typed. So I would use it with
$.FullName instead of $.name if I must use strange paths (like network shares).
second:
In the get-help for both move-item and rename-item I can see that the -path parameter :
Required? true
Position? 0
Default value None
Accept pipeline input? True (ByPropertyName, ByValue)
which means that we can pipe a collection of objects into it and the rename cmdlet will automatically pass through the collection :
Get-ChildItem -Path 'c:\tests\' -File -Recurse | Rename-Item -NewName ($_.name -replace ' l#ter') -Force -WhatIf
I have made this reply redundant for Drew's and Js2010's replys, but, as I am a beginner in powershell, I find easier to understand the answers with full commands.
I have a large number of files in a number of directories with this type of naming convention:
"BU1_KCG_RANDOM_030515.csv", etc.
I need to remove the 16th and 17th characters. So the new file name would be "BU1_KCG_RANDOM_0515.csv".
How can I iterate the multiple directory renaming accordingly?
So far I have got the below, but I am not sure what would come next.
Get-ChildItem -Filter *.csv -Recurse | Rename-Item -NewName {$_.Name..................}
Using -replace:
Get-ChildItem -Filter *.csv -Recurse |
foreach { $_ | rename-item -newname ($_.Name -replace '(.{15})..(.+)','$1$2') }
I much prefer mjolinor's answer, but you can always do things in a different way with PowerShell. Since you can index a string like a char array we can use a little array notation to get the characters you want as well.
$oldname = "BU1_KCG_RANDOM_030515.csv"
$newname = -join $oldname[0..14 + 17..($oldname.Length)]
$newname
BU1_KCG_RANDOM_0515.csv
We also need to use -join to convert the array back into a string.
Bit basic, eg doesn't check if the file has already been renamed, but should get you to the next step
gci -filter *.csv -rec | % { Rename-Item $_ -newname ($_.Name.substring(0,15) + $_.Name.substring(17)) }
where
gci = get-childitem
% = for-each
$_ = this (inside the for-each)