Bash rm command not working from inside loop

Question

At any given time my Linux server will have the following directory structure under /opt:

/opt/
    myapp/
        <fileName>-<version>.zip
    <fileName>/
        derp.txt
    staging/

Where <fileName>-<version>.zip is a ZIP file with a "wildcard" name. One moment it might be fizz-1.0.1.zip, in which case the file system would look like:

/opt/
    myapp/
        fizz-1.0.1.zip
    fizz/
        derp.txt
    staging/

Then an hour later, the file system might look like:

/opt/
    myapp/
        buzz-2.11.15.zip
    buzz/
        derp.txt
    staging/

I am trying to write a cleanup bash command that will scan the /opt/myapp directory for ZIP files (*.zip), rename them and move them to /opt/staging, as well as to delete the derp.txt file. For the rename, I just want to drop the hyphen and version number, so for instance transforming fizz-1.0.1.zip into fizz.zip. So for instance, running the script when the file system looks like:

/opt/
    myapp/
        fizz-1.0.1.zip
    fizz/
        derp.txt
    staging/

Should result with:

/opt/
    myapp/
    fizz/
    staging/
        fizz.zip

I am guaranteed to only have 1 ZIP file inside /opt/myapp at any given time. My best attempt is:

for file in *.zip; do 
    [[ -e $file ]] || continue
    sudo mv "$file" /opt/staging/"${file%%-*}.zip"
    sudo rm -rf /opt/${file%%-}/derp.txt
done

This performs the rename and moving of the ZIP file, but doesn't delete the derp.txt. Any ideas as to where I'm going awry?

Answer 1

Are you sure there isn't a * missing somewhere in ${file%%-}? As is, it only removes a trailing -, if any.