Send an e-mail each time a file gets added to a folder

#!/bin/bash -x

FAXFOLDER=/srv/shr/IncomingFax
lastfile="$(cd $FAXFOLDER; ls -1t | grep -v "\.log$" | head -1)"

beforelastfile="$(cat $FAXFOLDER/.lastfile)"
if [[ "$lastfile" = "$beforelastfile" ]]; then
        exit 1
fi

#echo "Last file: $lastfile" >> $FAXFOLDER/faxes.log
filename="${lastfile##*/}"
extension="${lastfile##*.}"
#echo "extension: $extension" >> $FAXFOLDER/faxes.log

if [[ "$extension" = "pdf" ]]; then
        echo "$(date) New fax: $lastfile" >> $FAXFOLDER/faxes.log
        echo "$lastfile" > $FAXFOLDER/.lastfile

        sleep 5

        echo "Arrivee d'un fax"  | mutt -a "$FAXFOLDER/$lastfile" -s "Arrivee d'un fax: $lastfile" -- president@whitehouse.gov
fi