testing shell script to find all video libraries in computer shell script

#!/bin/bash

# Append (>>) following to end of each script tracked.

whoami>> $SAVE_FILE       # User invoking the script.
echo $0>> $SAVE_FILE      # Script name.
date>> $SAVE_FILE         # Date and time.
echo>> $SAVE_FILE         # Blank line as seperator

# Of course, SAVE_FILE must be defined and exported as environmental variable in ~/.bashrc or ~/.zshrc etc..
#+ (something like ~/.scripts-run)

####
# TRACKED_SCRIPT
####

FILES="/media/v1ral/XVIDS/* /home/v1ral/xvids/*"
for f in $FILES
do
    if [ -f ${f}.mp4 ]
    then
        echo "Adding $f File!"
        continue
    fi
    # START
    mpv --shuffle $f
done