Add filename to the title metadata for all video files in a directory

setTitleFromFilename.sh

#!/usr/local/bin/zsh

for entry in *."$1"
do
  Filename=${entry%.*}
  echo "setting title -> " $Filename
  FileTitle=$(exiftool -s -Title "$entry" | awk '{print $3}');
  echo "file title: " $FileTitle
  if [ "$FileTitle" = "$Filename" ]; then
    echo "File title is the same as filename, skipping..."
  else
   exiftool -P -overwrite_original -Title="$Filename" $entry
  fi
done

I suggest first open a terminal session and go to the folder where your files are stored. Then just test to see if exiftool actually runs inside your folder. If it did run then do a chmod +x setTitleFromFilename.sh to be able to execute the script then run the command ./setTitleFromFilename.sh mp4

• make sure you have backup of your files just in case anything goes wrong.