I have a question regarding changing names of multiple files (approximately 800) to fit specific name format.
Exemplary data:
- 123_12345_abc455.jpg
- 123_12345_abc677.jpg
- 123_12345_abc899.jpg
- 123_47847_qwe334.jpg
- 123_47847_qwe433.jpg
- 123_54321_uwu123.jpg
Objective:
- 12345_1.jpg
- 12345_2.jpg
- 12345_3.jpg
- 47847_1.jpg
- 47847_2.jpg
- 54321_1.jpg
Note that after we remove characters from start and end we are left with multiple files of the same name, which causes errors and script simply omits those files with same name.
What I've got so far is:
ls | Rename-Item -NewName {$_.name.substring(0,$_.BaseName.length-7) + $_.Extension}
Here's one technique:
Get-ChildItem -Path .\*.jpg |
Group-Object {$_.Name.Split('_')[1]} |
ForEach-Object {
$namePart = $_.Name
$_.Group |
ForEach-Object {$i=1}{
Rename-Item -Path $_.FullName -NewName ("$namePart`_" + $i++ + $_.Extension)
}
}
Related
I'm trying to write a PowerShell script that goes into every folder in a certain directory, and every child with the parent.
Example:
Z:\Folder1\File.txt
Z:\Folder1\Picture.jpeg
Z:\Folder1\Data.csv
Z:\Folder2\File.txt
Z:\Folder2\Picture.jpeg
Z:\Folder2\Data.csv
=
Z:\Folder1\Folder1.txt
Z:\Folder1\Folder1.jpeg
Z:\Folder1\Folder1.csv
Z:\Folder2\Folder2.txt
Z:\Folder2\Folder2.jpeg
Z:\Folder2\Folder2.csv
I have this so far
dir | rename-item -NewName {$_.name -replace *,"Folder1"}
Please let me know how I can loop through every folder, and how I can rename them based on the folder name.
Thanks!
This should do what you're asking:
Get-ChildItem Z:\Folder* -Directory | Get-ChildItem -File | Rename-Item -NewName { $_.DirectoryName.split('\')[-1] + $_.Extension } -WhatIf
Adjust the folder name filter (.\Folder*) as required and remove the -WhatIf if you're satisfied with the changes it will make.
Obviously this doesn't account for where you might have a name clash if there are two files in the folder with the same extension. The following would do that:
$FilesToRename = Get-ChildItem Z:\Folder* -Directory | Get-ChildItem -File
foreach ($FileToRename in $FilesToRename) {
$NewName = $FileToRename.DirectoryName.split('\')[-1] + $FileToRename.Extension
$NewFile = Join-Path $FileToRename.Directory $NewName
$i = 0
While (Test-Path $NewFile) {
$i = $i++
$NewName = $FileToRename.DirectoryName.split('\')[-1] + "[$i]" + $FileToRename.Extension
$NewFile = Join-Path $FileToRename.Directory $NewName
}
$FileToRename | Rename-Item -NewName $NewName
}
I have a folder with hundreds of files in the following format:
20210322 - Filename description.txt
20210321 - Filename description.txt
20210320 - Filename description.txt
20210319 - Filename description.txt
20210318 - Filename description.txt
...
Using the Windows Command Prompt, how can I rename them to this format:
20210322 Filename description.txt
20210321 Filename description.txt
20210320 Filename description.txt
20210319 Filename description.txt
20210318 Filename description.txt
...
In other word replace, replace " - " with " ".
In the past, I've used
rename "IMG_*.jpg" "////*.jpg"
To remove "IMG_" from the beginning of filenames. I tried to do something similar, but it didn't work:
rename "* - *.txt" "*/ /.txt"
I found a better solution that works for me. One line, no batch file required. Using Windows Power Shell, enter:
Get-ChildItem -Recurse | ` Where-Object { $_.Name -match " - " } | ` Rename-Item -NewName { $_.Name -replace " - ", " " }
The above command will replace the given text in all filenames, including subfolders and subfiles (recursively).
I hope it's able to help someone.
This is easy enough using a language that is already on supported Windows systems. The -replace will remove the ' - '. When you are satisfied that the files will be renamed correctly, remove the -WhatIf from the Rename-Item command.
powershell.exe -NoLogo -NoProfile -Command ^
"Get-ChildItem -Path '.' -Filter '*.txt' |" ^
"ForEach-Object {" ^
"Rename-Item -Path $_.FullName -NewName $($_.Name -replace ' - ',' ') -WhatIf" ^
"}"
It is easier when run from a PowerShell console or as a .ps1 script.
Get-ChildItem -Path '.' -Filter '*.txt' |
ForEach-Object {
Rename-Item -Path $_.FullName -NewName $($_.Name -replace ' - ',' ') -WhatIf
}
To get a "one-liner," put the first code example above into a file such as Do-Rename.bat saved in a directory mentioned in your PATH variable. Then use a command such as:
Do-Rename
I need to truncate filenames to 35 characters (including extension) so I run this script and it worked for the directory it self (PowerShell, Windows 10).
Get-ChildItem *.pdf | rename-item -NewName {$_.name.substring(0,31) + $_.Extension}
Then I wanted to apply the same script including subdirectories:
Get-ChildItem -Recurse -Include *.pdf | Rename-Item -NewName {$_.Name.substring(0,31) + $_.Extension}
This script gave me an error like this for each file:
Rename-Item : Error in input to script block for parameter 'NewName'. Exception when calling "Substring" with the arguments "2": "The index and length must reference a location in the string. Parameter name: length"
On line: 1 Character: 62
+ ... *.pdf | Rename-Item -NewName {$_.Name.substring(0,31) + $_.Extension}
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ CategoryInfo : InvalidArgument: (C:\User\prsn..._file_name_long.pdf:PSObject) [Rename-Item], ParameterBindingException
+ FullyQualifiedErrorId : ScriptBlockArgumentInvocationFailed,Microsoft.PowerShell.Commands.RenameItemCommand
I tried this one but it doesn't go on subdirectories:
Command to truncate all filenames at 255 characters
I found this one but it doesn't have an answer:
https://superuser.com/questions/1188711/how-to-recursively-truncate-filenames-and-directory-names-in-powershell
I don't think you can use $_ that way. I think you have to wrap it in a ForEach loop in order to get the references to work that way. Once that's done, you'll have to specify the path of the file you want to rename as well:
Something like:
Get-ChildItem -Recurse -Include *.pdf -File |
ForEach-Object{
Rename-Item -Path $_.FullName -NewName ( $_.BaseName.SubString(0, 31) + $_.Extension )
}
Notice I used parenthesis instead of curly braces. If you use a script block it may not evaluate. There are other ways to make it happen, but I think using parens is the most obvious.
Notice I used $_.BaseName instead of name. Base name doesn't include the extension. though I don't know how your sub-string works out I left it in for you decide.
You can combine this with #Mathias's answer or some modification of it. That might give you a better or more reliable way to derive the new file name. I haven't tested it, but it might look something like:
Get-ChildItem -Recurse -Include *.pdf -File |
ForEach-Object{
Rename-Item -Path $_.FullName -NewName ( ($_.Name -replace '(?<=^.{35}).*$') + $_.Extension )
}
Use the -replace regex operator to remove anything after the first 35 chars - it will simply ignore any string that doesn't have at least 35 characters and return it as-is:
$_.Name -replace '(?<=^.{35}).*$'
The correct error message is
Exception calling "Substring" with "2" argument(s): "Index and length must refer to a location within the string.
The reason is that the second argument is greater than the length of the file name. e.g. "abc".Substring(0,4) throws.
Answer
$renameTarget = dir -File -Recurse *.pdf | ? { $_.Name.Length -gt 35 }
$renameTarget | Rename-Item -NewName {
$_.name.substring(0, 31) + ".pdf"
}
or
dir *.pdf -File -Recurse | Rename-Item -NewName {
$_.name.substring(0, [Math]::Min($_.BaseName.length, 31)) + ".pdf"
}
I'm looking at how to add an extension recursively to an entire folder structure. This line does what I need, but only for the current folder. I need to do the same for the subfolders structure.
Get-ChildItem -File | % { mv ($_.BaseName+"") ($_.BaseName+".png") }
But I keep getting this error:
Cannot find path 'C:\Users\Jess...\' because it does not exist.
I used the search, however I only founded a solution for the Bash, not the PowerShell. So I couldn't get the -Recurse to work in the same way.
Get-ChildItem -File -Recurse | % { mv ($_.BaseName+"") ($_.BaseName+".png") }
Here's a way to get the full pathname. In powershell 6 this isn't an issue.
Get-ChildItem -File -Recurse | % { $_ | mv -destination ($_.Name + '.png' ) -whatif }
Or
Get-ChildItem -File -Recurse | ? { ! $_.extension } |
mv -destination { $_.Name + '.png' } -whatif
I have a directory with a certain number of mp3 files, that are sorted by name, for example:
Artist.mp3
Another artist.mp3
Bartist.mp3
Cool.mp3
Day.mp3
How can I add a unique continuous 3-digit prefix to each file, but in a random order, so that when sorting by name it would look something like this:
001 Cool.mp3
002 Artist.mp3
003 Day.mp3
...
Try this:
$files = Get-ChildItem -File
$global:i = 0; Get-Random $files -Count $files.Count |
Rename-Item -NewName {"{0:000} $($_.Name)" -f ++$global:i} -WhatIf
Or in the unlikely event the filename contains curly braces :-):
$files = Get-ChildItem -File
$global:i = 0; Get-Random $files -Count $files.Count |
Rename-Item -NewName {("{0:000} " -f ++$global:i) + $_.Name} -WhatIf
Or as #PetSerAl suggests, using [ref]$i as a good way to avoid global vs script scoping issues altogether:
$files = Get-ChildItem -File
$i = 0; Get-Random $files -Count $files.Count |
Rename-Item -NewName {"{0:000} {1}" -f ++([ref]$i).Value, $_.Name} -WhatIf
If the output looks good remove the -WhatIf and run this again to actually rename the files.