Is there one line of code for changing all folders and sub folders file extensions using powershell?

0

I used the following code to batch change one extension in one folder at a time.

Dir *.mkv | rename-item -newname { $_.name -replace ".mkv",".vlc" }

What I want is to be able to have one line of code that will

• change all file extension types to one file extension




• include files inside sub folders

Any help on this would be greatly appreciated, THANKS

powershell batch-file file-extension subfolder batch-rename

share|improve this question

edited Jan 2 at 8:49

Joey Mallone

2,26561933

asked Jan 2 at 8:23

George CastanzaGeorge Castanza

1

• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  
  See Get-ChildItem options. Use this to replace ‘dir’.
  
  – user2864740
  Jan 2 at 8:34
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @user2864740 dir is an alias for Get-ChildItem - it makes sense to use proper names instead of aliases but there won't be any effective difference.
  
  – colsw
  Jan 2 at 10:02
  

  
  
  
  

add a comment | 

0

I used the following code to batch change one extension in one folder at a time.

Dir *.mkv | rename-item -newname { $_.name -replace ".mkv",".vlc" }

What I want is to be able to have one line of code that will

• change all file extension types to one file extension




• include files inside sub folders

Any help on this would be greatly appreciated, THANKS

powershell batch-file file-extension subfolder batch-rename

share|improve this question

edited Jan 2 at 8:49

Joey Mallone

2,26561933

asked Jan 2 at 8:23

George CastanzaGeorge Castanza

1

• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  
  See Get-ChildItem options. Use this to replace ‘dir’.
  
  – user2864740
  Jan 2 at 8:34
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @user2864740 dir is an alias for Get-ChildItem - it makes sense to use proper names instead of aliases but there won't be any effective difference.
  
  – colsw
  Jan 2 at 10:02
  

  
  
  
  

add a comment | 

0

0

0

I used the following code to batch change one extension in one folder at a time.

Dir *.mkv | rename-item -newname { $_.name -replace ".mkv",".vlc" }

What I want is to be able to have one line of code that will

• change all file extension types to one file extension




• include files inside sub folders

Any help on this would be greatly appreciated, THANKS

powershell batch-file file-extension subfolder batch-rename

share|improve this question

edited Jan 2 at 8:49

Joey Mallone

2,26561933

asked Jan 2 at 8:23

George CastanzaGeorge Castanza

1

I used the following code to batch change one extension in one folder at a time.

Dir *.mkv | rename-item -newname { $_.name -replace ".mkv",".vlc" }

What I want is to be able to have one line of code that will

• change all file extension types to one file extension




• include files inside sub folders

Any help on this would be greatly appreciated, THANKS

powershell batch-file file-extension subfolder batch-rename

powershell batch-file file-extension subfolder batch-rename

share|improve this question

edited Jan 2 at 8:49

Joey Mallone

2,26561933

asked Jan 2 at 8:23

George CastanzaGeorge Castanza

1

share|improve this question

edited Jan 2 at 8:49

Joey Mallone

2,26561933

asked Jan 2 at 8:23

George CastanzaGeorge Castanza

1

share|improve this question

share|improve this question

edited Jan 2 at 8:49

Joey Mallone

2,26561933

edited Jan 2 at 8:49

Joey Mallone

2,26561933

edited Jan 2 at 8:49

Joey Mallone

2,26561933

2,26561933

asked Jan 2 at 8:23

George CastanzaGeorge Castanza

1

asked Jan 2 at 8:23

George CastanzaGeorge Castanza

1

asked Jan 2 at 8:23

George CastanzaGeorge Castanza

1

1

• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  
  See Get-ChildItem options. Use this to replace ‘dir’.
  
  – user2864740
  Jan 2 at 8:34
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @user2864740 dir is an alias for Get-ChildItem - it makes sense to use proper names instead of aliases but there won't be any effective difference.
  
  – colsw
  Jan 2 at 10:02
  

  
  
  
  

add a comment | 

• 
  
  
  

  
  3
  

  
  
  
  
  
  

  
  
  See Get-ChildItem options. Use this to replace ‘dir’.
  
  – user2864740
  Jan 2 at 8:34
  
  
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  @user2864740 dir is an alias for Get-ChildItem - it makes sense to use proper names instead of aliases but there won't be any effective difference.
  
  – colsw
  Jan 2 at 10:02
  

  
  
  
  

3

3

See Get-ChildItem options. Use this to replace ‘dir’.

– user2864740
Jan 2 at 8:34

See Get-ChildItem options. Use this to replace ‘dir’.

– user2864740
Jan 2 at 8:34

@user2864740 dir is an alias for Get-ChildItem - it makes sense to use proper names instead of aliases but there won't be any effective difference.

– colsw
Jan 2 at 10:02

@user2864740 dir is an alias for Get-ChildItem - it makes sense to use proper names instead of aliases but there won't be any effective difference.

– colsw
Jan 2 at 10:02

add a comment | 

3 Answers
3

active

oldest

votes

4

Use -Recurse to include subfolders. Use BaseName which is the filename without extension.
Read the documentation for more info on either

Get-ChildItem *.mkv -Recurse | Rename-Item -NewName {"$($_.BaseName).vlc"}

Edit

Apologies, I missed this part:

change all file extension types to one file extension

To change all file extensions you just need to exclude the *mkv but as covered by LotPings's answer this isn't recommended; it's very easy to change the extension of files you didn't mean to. He covers using the -Include parameter, which is the recommended way as it filters early on.

In the interest of showing another way, you could use the Extension property. This allows you to leverage all of the PowerShell comparison operators - examples below.

Get-ChildItem -Recurse | Where-Object {$_.Extension -eq ".mkv"}

Get-ChildItem -Recurse | Where-Object {$_.Extension -in @(".mkv",".avi")}

Get-ChildItem -Recurse | Where-Object {$_.Extension -ne ".vlc"}

share|improve this answer

edited Jan 2 at 15:37

answered Jan 2 at 9:13

gms0ulmangms0ulman

7,68521128

add a comment | 

1

as you also tagged it batch-file:

for /r %%a in (*.mkv) do @ECHO ren "%%a" "%%~na.vlc"

(this is batch-file syntax. If you want to use it directly on command line)

for /r %a in (*.mkv) do @ECHO ren "%a" "%~na.vlc"

Remove @ECHO, if the output fits your needs.

share|improve this answer

answered Jan 2 at 8:59

StephanStephan

35.9k43457

add a comment | 

1

I wouldn't change ALL extensions, just use -Include and present a list

Get-ChildItem -Path X:starthere -Recurse -Include ('*.mkv','*.xyz')| Rename-Item -NewName {$_.BaseName+'.vlc'} -WhatIf

If the output looks OK, remove the trailing -WhatIf

share|improve this answer

answered Jan 2 at 12:19

LotPingsLotPings

19.8k61633

add a comment | 

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3 Answers
3

active

oldest

votes

3 Answers
3

active

oldest

votes

active

oldest

votes

active

oldest

votes

4

Use -Recurse to include subfolders. Use BaseName which is the filename without extension.
Read the documentation for more info on either

Get-ChildItem *.mkv -Recurse | Rename-Item -NewName {"$($_.BaseName).vlc"}

Edit

Apologies, I missed this part:

change all file extension types to one file extension

To change all file extensions you just need to exclude the *mkv but as covered by LotPings's answer this isn't recommended; it's very easy to change the extension of files you didn't mean to. He covers using the -Include parameter, which is the recommended way as it filters early on.

In the interest of showing another way, you could use the Extension property. This allows you to leverage all of the PowerShell comparison operators - examples below.

Get-ChildItem -Recurse | Where-Object {$_.Extension -eq ".mkv"}

Get-ChildItem -Recurse | Where-Object {$_.Extension -in @(".mkv",".avi")}

Get-ChildItem -Recurse | Where-Object {$_.Extension -ne ".vlc"}

share|improve this answer

edited Jan 2 at 15:37

answered Jan 2 at 9:13

gms0ulmangms0ulman

7,68521128

add a comment | 

4

Use -Recurse to include subfolders. Use BaseName which is the filename without extension.
Read the documentation for more info on either

Get-ChildItem *.mkv -Recurse | Rename-Item -NewName {"$($_.BaseName).vlc"}

Edit

Apologies, I missed this part:

change all file extension types to one file extension

To change all file extensions you just need to exclude the *mkv but as covered by LotPings's answer this isn't recommended; it's very easy to change the extension of files you didn't mean to. He covers using the -Include parameter, which is the recommended way as it filters early on.

In the interest of showing another way, you could use the Extension property. This allows you to leverage all of the PowerShell comparison operators - examples below.

Get-ChildItem -Recurse | Where-Object {$_.Extension -eq ".mkv"}

Get-ChildItem -Recurse | Where-Object {$_.Extension -in @(".mkv",".avi")}

Get-ChildItem -Recurse | Where-Object {$_.Extension -ne ".vlc"}

share|improve this answer

edited Jan 2 at 15:37

answered Jan 2 at 9:13

gms0ulmangms0ulman

7,68521128

add a comment | 

4

4

4

Use -Recurse to include subfolders. Use BaseName which is the filename without extension.
Read the documentation for more info on either

Get-ChildItem *.mkv -Recurse | Rename-Item -NewName {"$($_.BaseName).vlc"}

Edit

Apologies, I missed this part:

change all file extension types to one file extension

To change all file extensions you just need to exclude the *mkv but as covered by LotPings's answer this isn't recommended; it's very easy to change the extension of files you didn't mean to. He covers using the -Include parameter, which is the recommended way as it filters early on.

In the interest of showing another way, you could use the Extension property. This allows you to leverage all of the PowerShell comparison operators - examples below.

Get-ChildItem -Recurse | Where-Object {$_.Extension -eq ".mkv"}

Get-ChildItem -Recurse | Where-Object {$_.Extension -in @(".mkv",".avi")}

Get-ChildItem -Recurse | Where-Object {$_.Extension -ne ".vlc"}

share|improve this answer

edited Jan 2 at 15:37

answered Jan 2 at 9:13

gms0ulmangms0ulman

7,68521128

Use -Recurse to include subfolders. Use BaseName which is the filename without extension.
Read the documentation for more info on either

Get-ChildItem *.mkv -Recurse | Rename-Item -NewName {"$($_.BaseName).vlc"}

Edit

Apologies, I missed this part:

change all file extension types to one file extension

To change all file extensions you just need to exclude the *mkv but as covered by LotPings's answer this isn't recommended; it's very easy to change the extension of files you didn't mean to. He covers using the -Include parameter, which is the recommended way as it filters early on.

In the interest of showing another way, you could use the Extension property. This allows you to leverage all of the PowerShell comparison operators - examples below.

Get-ChildItem -Recurse | Where-Object {$_.Extension -eq ".mkv"}

Get-ChildItem -Recurse | Where-Object {$_.Extension -in @(".mkv",".avi")}

Get-ChildItem -Recurse | Where-Object {$_.Extension -ne ".vlc"}

share|improve this answer

edited Jan 2 at 15:37

answered Jan 2 at 9:13

gms0ulmangms0ulman

7,68521128

share|improve this answer

share|improve this answer

edited Jan 2 at 15:37

edited Jan 2 at 15:37

edited Jan 2 at 15:37

answered Jan 2 at 9:13

gms0ulmangms0ulman

7,68521128

answered Jan 2 at 9:13

gms0ulmangms0ulman

7,68521128

answered Jan 2 at 9:13

gms0ulmangms0ulman

7,68521128

7,68521128

add a comment | 

add a comment | 

1

as you also tagged it batch-file:

for /r %%a in (*.mkv) do @ECHO ren "%%a" "%%~na.vlc"

(this is batch-file syntax. If you want to use it directly on command line)

for /r %a in (*.mkv) do @ECHO ren "%a" "%~na.vlc"

Remove @ECHO, if the output fits your needs.

share|improve this answer

answered Jan 2 at 8:59

StephanStephan

35.9k43457

add a comment | 

1

as you also tagged it batch-file:

for /r %%a in (*.mkv) do @ECHO ren "%%a" "%%~na.vlc"

(this is batch-file syntax. If you want to use it directly on command line)

for /r %a in (*.mkv) do @ECHO ren "%a" "%~na.vlc"

Remove @ECHO, if the output fits your needs.

share|improve this answer

answered Jan 2 at 8:59

StephanStephan

35.9k43457

add a comment | 

1

1

1

as you also tagged it batch-file:

for /r %%a in (*.mkv) do @ECHO ren "%%a" "%%~na.vlc"

(this is batch-file syntax. If you want to use it directly on command line)

for /r %a in (*.mkv) do @ECHO ren "%a" "%~na.vlc"

Remove @ECHO, if the output fits your needs.

share|improve this answer

answered Jan 2 at 8:59

StephanStephan

35.9k43457

as you also tagged it batch-file:

for /r %%a in (*.mkv) do @ECHO ren "%%a" "%%~na.vlc"

(this is batch-file syntax. If you want to use it directly on command line)

for /r %a in (*.mkv) do @ECHO ren "%a" "%~na.vlc"

Remove @ECHO, if the output fits your needs.

share|improve this answer

answered Jan 2 at 8:59

StephanStephan

35.9k43457

share|improve this answer

share|improve this answer

answered Jan 2 at 8:59

StephanStephan

35.9k43457

answered Jan 2 at 8:59

StephanStephan

35.9k43457

answered Jan 2 at 8:59

StephanStephan

35.9k43457

35.9k43457

add a comment | 

add a comment | 

1

I wouldn't change ALL extensions, just use -Include and present a list

Get-ChildItem -Path X:starthere -Recurse -Include ('*.mkv','*.xyz')| Rename-Item -NewName {$_.BaseName+'.vlc'} -WhatIf

If the output looks OK, remove the trailing -WhatIf

share|improve this answer

answered Jan 2 at 12:19

LotPingsLotPings

19.8k61633

add a comment | 

1

I wouldn't change ALL extensions, just use -Include and present a list

Get-ChildItem -Path X:starthere -Recurse -Include ('*.mkv','*.xyz')| Rename-Item -NewName {$_.BaseName+'.vlc'} -WhatIf

If the output looks OK, remove the trailing -WhatIf

share|improve this answer

answered Jan 2 at 12:19

LotPingsLotPings

19.8k61633

add a comment | 

1

1

1

I wouldn't change ALL extensions, just use -Include and present a list

Get-ChildItem -Path X:starthere -Recurse -Include ('*.mkv','*.xyz')| Rename-Item -NewName {$_.BaseName+'.vlc'} -WhatIf

If the output looks OK, remove the trailing -WhatIf

share|improve this answer

answered Jan 2 at 12:19

LotPingsLotPings

19.8k61633

I wouldn't change ALL extensions, just use -Include and present a list

Get-ChildItem -Path X:starthere -Recurse -Include ('*.mkv','*.xyz')| Rename-Item -NewName {$_.BaseName+'.vlc'} -WhatIf

If the output looks OK, remove the trailing -WhatIf

share|improve this answer

answered Jan 2 at 12:19

LotPingsLotPings

19.8k61633

share|improve this answer

share|improve this answer

answered Jan 2 at 12:19

LotPingsLotPings

19.8k61633

answered Jan 2 at 12:19

LotPingsLotPings

19.8k61633

answered Jan 2 at 12:19

LotPingsLotPings

19.8k61633

19.8k61633

add a comment | 

add a comment | 

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