CMD Rename file name after last dash.

[sav99]

Hello I am new here,

 

I have found how to rename a file in the command prompt :

 

rename  d:\folder\Artist - Song - Description.mp3 Artist - Song.mp3

I was also able to figure out how to make a for loop, in this example it just prints the name

for %I in (*.mp3) DO ECHO %I

 

I have files that are in this format :

Artist - Song - description.mp3

Artist Song - description.mp3

What I would like to have :

 

 

Artist - Song.mp3

Artist Song.mp3

 

So the logic for the code should be Remove/trim off the name after the last dash withoud the extension.
Could someone please pinpoint me in the right direction thanks! 

[Oshino Shinobu]

Not sure on doing it through CMD/Bash but fairly simple (albeit messy) through a powershell script:

 

$path1 = "D:\test\temp"

$songs = Get-ChildItem $path1 *.mp3
Write-Host "before"
$songs

foreach ($song in $songs) {
    $name = $song.Name
    if ($name -match '-') {
        $name = $name.Substring(0, $name.lastIndexOf('-'))
        $name = $name.Trim()
        $name = $name + ".mp3"
        Rename-Item $song.FullName -NewName $name
    }
    else {}
}

Write-Host "after"
$songs = Get-ChildItem $path1 *.mp3

$songs

 

EDIT: Amended so it doesn't rename things that don't have a hyphen.

 

Example of it working:

Mode                 LastWriteTime         Length Name                                                                                                     
----                 -------------         ------ ----                                                                                                     
-a----        22/01/2021     02:34              0 Artist - song - desc.mp3                                                                               
-a----        22/01/2021     02:34              0 Artist Song 2 - descc.mp3                                                                             
-a----        22/01/2021     02:34              0 Artist Song 3.mp3                                                                                                                                                                                                                                                                                       
after
-a----        22/01/2021     02:34              0 Artist - song.mp3                                                                                     
-a----        22/01/2021     02:34              0 Artist Song 2.mp3                                                                                     
-a----        22/01/2021     02:34              0 Artist Song 3.mp3  

 

EDIT 2: Some formating

[sav99]

Hello @Oshino Shinobu, that worked perfectly thanks so much!