Script to locate which disk a file is on

Here's a quick script I use to return the true path of a file:

#!/bin/bash
for d in /mnt/disk[1-9]*; do
   if [[ -e "$d$(printf "$1" | sed 's/\/mnt\/user//')" ]]; then
      echo "$d$(printf "$1" | sed 's/\/mnt\/user//')" && break
   fi
done

Or as a function:

shfs_locate() {
   for d in /mnt/disk[1-9]*; do
      if [[ -e "$d$(printf "$1" | sed 's/\/mnt\/user//')" ]]; then
         echo "$d$(printf "$1" | sed 's/\/mnt\/user//')" && break
      fi
   done
}

Run it like "shfs_locate.sh /mnt/user/myshare/myfile" or as a function: "shfs_locate /mnt/user/myshare/myfile"

Interested if anyone knows how to implement this natively with shfs commands exposed by unRAID to prevent any disk spin-up.