Powerpoint – Scripting to Save PPTX Files as PDFs

Create a text file like this:

#!/bin/bash

cd "$(dirname "${BASH_SOURCE[0]}")" || {
    echo "Error changing directory." >&2
    exit 1
}

echo "Cleaning files..."

rm *.aux
rm *.bak
rm *.bbl
rm *.blg
rm *.gz
rm *.log
rm *.pdf

echo "Done!"

Give it a ".command" extension, and add execute permission to it. This will make it automatically open and run in Terminal when it's double-clicked.

Note that there are two important differences (and one minor one) between this and @thiagoveloso's script:

• It uses double-quotes around the path it's cding to, which will prevent problems if any directory names contain spaces (which is entirely normal on OS X).
• It checks for errors while cding, and if there was a problem it exits (rather than deleting files in an unexpected location). Always check for errors on any script command that affects what the rest of the script will do; cd is a good example of this.
• (Minor) It cds directly to the script's directory (rather than cding there, capturing that location in a variable, then cding there again based on the variable).

If you're creating a Service using RunShell Script which you want to pass the selected Folder(s) to the RunShell Script and have additional actions take place in the script on them, then start with these settings.

Create the Service:

1. Open Automator and select Service or File > New > Service If Automator is already open.

2. Set Service receives selected to folders and in to Finder.

3. Add a Run Shell Script Action, setting Shell: to /bin/bash and Pass input: to
   as arguments. This changes the default code to from cat to:
   

   for f in "$@"
   do
       echo "$f"
   done
   

Now you can use $f to act on the target Folder(s), e.g. cd $f and now you're in the directory of $f and can add additional code to act upon the files/folders within $f, etc.

Update:

Use the following working code as an example:

for d in "$@"; do
    cd "$d"
    for f in *.log; do    
        rm "$f"
    done
done

Within the Test and Test copy folders there were a number of .log files and files with other extensions as well. When the above code was run it deleted only the *.log files within the target folders as show in the images below using two folders or one folder and both files and folders with/without spaces in their names.