Use inotifywait to monitor folders and run script on a file when found

Question

I am hoping someone could help me out. I am using a script that when pointed at a certain file in a folder, will generate a JSON file in that same folder. Below is the command used to run the script which is currently done file by file.

bash /path/to/script/PageBuilder.sh "/path/to/file/cvinfo"

I am looking to inotifywait to scan through the subdirectory and look for every cvinfo file and execute the script on that file.

This is what I have tried so far with no luck:

psttern="cvinfo"
inotifywait -m -r -e close_write --format %w%f /mnt/m/Comics/ | while read FILENAME; do
  if [[ "$FILENAME" == *${pattern}* ]]; then
    bash /mnt/m/PageBuilder/PageBuilder.sh "$FILENAME";
  fi
done&

This currently just sets up the watches and then nothing after that, even if the cvinfo file is moved to and from the folder or edited etc.

My knowledge on any of this is purely from our friend Google so i only have a very basic knowledge of how this works. I've tried looking for other posts to help but none work for my problem.

I'm using Windows but running this in a BASH terminal.

Answer 1

Stumbled on this while looking into a related topic... I realize this is an old post but it looks like you had a typo in the shell variable (psttern instead of pattern).

I'm not enough of an expert to know how that would fail without testing it myself, but it might fail silently (and since the ${pattern} variable might not be initialized, it would return true for any $FILENAME).