I'd like to add underscore character "_" at position 22 of a filename.
What would be the PowerShell command to do it?
alternately you can also make use of the string method insert
Get-Item -Path $Path |
Rename-Item -NewName {$_.BaseName.insert(22,'_') + $_.Extension} -WhatIf
note: remove -whatif to apply the rename
You could use -replace and a simple regex to achieve that.
In the following example, I first retrieve the file using the Get-Item cmdlet and rename it using Rename-Item:
Get-Item $YOURPATH | % { $_ | Rename-Item -NewName ($_.Name -replace '^([\S\s]{22})', '$1_')}
You may have to add a check whether the file name is long enough, otherwise it could happen, that you rename the file extension or nothing...
below script will add '-' at position 3 and 6 and 9 and 12 and 15
from: s270120070336.bmp
to: s27-01-20-07-03-36.bmp
Get-ChildItem -Path 'C:\users\sonook\desktop\screenshot' -Filter '*.bmp' |
ForEach-Object { $_ | Rename-Item -NewName {$_.BaseName.insert(3,'-').insert(6,'-').insert(9,'-').insert(12,'-').insert(15,'-') + $_.Extension}}
Related
I have a folder with media files named by timestamp like following yyyyMMdd_HHmmss_*.*. I need to rename them to yyyy-MM-dd HH-mm-ss *.*
For example I need to rename file 20181019_210353_BURST2.jpg to 2018-10-19 21-03-53 BURST2.jpg
There is a my ugly approach
PS E:> gci | Rename-Item -NewName { $_.Name.Substring(0,4) + '-' + $_.Name.Substring(4,2) + '-' + $_.Name.Substring(6,2) + ' ' + $_.Name.Substring(9,2) + '-' + $_.Name.Substring(11,2) + '-' + $_.Name.Substring(13,2) + $_.Name.Substring(15) }
What is the right command to obtain my purpose?
If it is concision you're looking for, you can use the -replace operator with the following regex:
Get-ChildItem -File -Filter *.jpg | Rename-Item -NewName {
$_.Name -replace '(^\d{2})?(\d{2})(\d{2})(\d{2})_', '$1$2-$3-$4 '
} -WhatIf
Note: The -WhatIf common parameter in the command above previews the operation. Remove -WhatIf once you're sure the operation will do what you want.
An explanation of the regex, as well as the ability to experiment with it and the substitution expression, can be found on this regex101.com page.
Your method will work, but you will need to provide a -Path parameter to Rename-Item. The short answer is that the string will need to be broken down into the components to use in the new name.
If you want to have some regex fun, you could use something like this. When you are convinced that the files will be renamed correctly, remove the -WhatIf from the Rename-Item command.
Get-ChildItem |
ForEach-Object {
if ($_.Name -match '^(....)(..)(..)_(..)(..)(..)(.*)') {
$NewName = "$($Matches[1..3] -join '-') $($Matches[4..6] -join '-')$($Matches[7])"
Rename-Item -Path $_.FullName -NewName $NewName -WhatIf
}
}
I have the following script for renaming a bunch of files in a directory, adding the name of the directory to the start of them:
$s = "Y:\Teknisk Arkiv\Likeretter 111-Å1\E2_Kretsskjema\02_Likeretter styring\3AJJ000302-222"
Get-ChildItem -Path $s -Exclude $_.Directory.Name* | rename-item -NewName { $_.Directory.Name + '_' + $_.Name }
Before running the script the files in the folder looks something like this
after like this
As you can see it does more or less what I want, except that -exclude $_.DirectoryName* doesn't prevent files which already have the foldername as a prefix from being renamed. What am I doing wrong here?
$_ in a pipeline is only defined inside a script block used in a non-initial pipeline segment, where it refers to the input object at hand, so in your Get-ChildItem command it is effectively undefined.
Even if $_.Directory.Name did have a value, $_.Directory.Name* wouldn't work as expected, because it would be passed as 2 arguments (you'd have to use "$($_.Directory.Name)*" or ($_.Directory.Name + '*').
You instead want to extract the directory name from the $s input path, which you can do with Split-Path -Leaf, and then append '*'.
In order for -Exclude to be effective, the input path must end in \*, because -Include and -Exclude filters - perhaps surprisingly - operate on the leaf component of the -Path argument, not on the child paths (unless -Recurse is also specified).
To put it all together:
Get-Item -Path $s\* -Exclude ((Split-Path -Leaf $s) + '*') |
Rename-Item -NewName { $_.Directory.Name + '_' + $_.Name }
I've switched to Get-Item, since \* is now being used to enumerate the children, but Get-ChildItem would work too.
The $_ is only valid when it is used on the right-side of a pipeline meaning when you have a collection of items and "pipe" them through the "$_" would represent the current item.
Since the directory name you want excluded is static you can just hardcode it and use as your exclude filter.
$s = "Y:\Teknisk Arkiv\Likeretter 111-Å1\E2_Kretsskjema\02_Likeretter styring\3AJJ000302-222"
$exclude_filter = "3AJJ000302-222*"
Get-ChildItem -Path $s -Exclude $exclude_filter | rename-item -NewName { $_.Directory.Name + '_' + $_.Name }
Also try to use "-whatif" with rename-item so you know what will happen before it happens.
$_ represents the currently processed item, what requires a ForEach-Object or a scriptblock inside a pipe, not present at the begin of your command.
Solution make the path a FileInfoObject and use -Exclude
$s = Get-Item "Y:\Teknisk Arkiv\Likeretter 111-Å1\E2_Kretsskjema\02_Likeretter styring\3AJJ000302-222"
Get-ChildItem -Path $s -Exclude "$($s.Name)*"|Rename-Item -NewName {$_.Directory.Name+'_'+$_.Name}
solution use a Where-Object to filter files already starting with the directory name
Get-ChildItem -Path $s | Where-Object {$_.Directory.Name -notlike "$($_.Name)*"} |
Rename-Item -NewName { $_.Directory.Name + '_' + $_.Name }
Solution use the RegEx based -replace operator to prepend the directory name and use a negative lookahead assertion to exclude files which already have it.
Get-ChildItem -Path $s |
Rename-Item -NewName {$x=$_.Directory.Name;$_.Name -replace "^(?!$x)",$x}
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 try to rename files with PwerShell Rename-Item cmdlet. Code below
Get-ChildItem -recurse * `
| ?{!$_.PsIsContainer} `
| Rename-Item -NewName {$_.FullName -Replace '.abcd#email.com','.abcd#email_A.com.abcd#email_B.com.abcd#email_E.com'}
But, PowerShel tells me about long path or file name; which is irrelevant to my process. But it is strongly necessary keep new long name.
How to except this error?
is it possible ask you about code example? The following commented code snippet (conservative approach) could help:
Get-ChildItem -recurse * | Where-Object {!$_.PsIsContainer} |
ForEach-Object {
### in regular expression: ↓ ↓ escape dots
$NewName = $_.Name -Replace '\.abcd#email\.com',
'.abcd#email_A.com.abcd#email_B.com.abcd#email_E.com'
### here is right place to check target filename length:
$targetLength = 1 + $_.DirectoryName.Length + $NewName.Length
Rename-Item -Path $_.FullName -NewName $NewName
}
Read Rename-Item reference and Regular Expression Language - Quick Reference.
I am trying to remove blank spaces from many file names using PowerShell 3.0. Here is the code that I am working with:
$Files = Get-ChildItem -Path "C:\PowershellTests\With_Space"
Copy-Item $Files.FullName -Destination C:\PowershellTests\Without_Space
Set-Location -Path C:\PowershellTests\Without_Space
Get-ChildItem *.txt | Rename-Item -NewName { $_.Name -replace ' ','' }
For example: the With_Space directory has these files:
Cable Report 3413109.pdf
Control List 3.txt
Test Result Phase 2.doc
The Without_Space directory will need the above file name to be:
CableReport3413109.pdf
ControlList3.txt
TestResultPhase 2.doc
Currently, the script shows no error but it only copies the source files to the destination folder, but doesn't remove the spaces in file names.
Your code should work just fine, but since Get-ChildItem *.txt lists only .txt files the last statement should remove the spaces from just the text files, giving you a result like this:
Cable Report 3413109.pdf
ControlList3.txt
Test Result Phase 2.doc
This should remove spaces from the names of all files in the folder:
Get-ChildItem -File | Rename-Item -NewName { $_.Name -replace ' ','' }
Prior to PowerShell v3 use this to restrict processing to just files:
Get-ChildItem | Where-Object { -not $_.PSIsContainer } |
Rename-Item -NewName { $_.Name -replace ' ','' }
something like this could work
$source = 'C:\temp\new'
$dest = 'C:\temp\new1'
Get-ChildItem $source | % {copy $_.FullName $(join-path $dest ($_.name -replace ' '))}
I think your script should almost work, except $_ isn't going to be defined as anything. By using the for-each cmdlet (%), you assign it and then can use it.
Get-ChildItem *.txt | %{Rename-Item -NewName ( $_.Name -replace ' ','' )}
EDIT:
That interpretation was totally wrong. Some people seem to have found it useful, but as soon as you have something being piped, it appears that $_ references the object currently in the pipe. My bad.