scrub.sh

#!/bin/sh

unset MAILTO
unset MAILFROM
DIRECTORY="."
while getopts d:t:f: option
do
	case "${option}"
		in
			d) DIRECTORY=${OPTARG};; # Directory to scrub
			t) MAILTO=${OPTARG};;	 # E-mail for error report
			f) MAILFROM=${OPTARG};;	 # E-mail of who sends the report
	esac
done

# Timestamp starting the scrub.
echo -n 'initiating scrub at ' | tee scrub.log
date | tee -a scrub.log

# Enumerate all flac files, run `flac -tsw` (test silent, warning as error) on it,
# and output the filename to scrub.log if it fails.
find $DIRECTORY -type f -name '*.flac' | while read file; do
	flac -tsw "$file" && echo "$file is fine" || (echo -e "\e[31m$file is corrupt\e[0m" && echo "$file" | tee -a scrub.log)
done

# And timestamp when it was done.
echo -n 'scrub done at ' | tee -a scrub.log
date | tee -a scrub.log

if [ "$MAILTO" ]; then
	if [ "$(cat scrub.log | wc -l)" -gt "2" ]; then
		SUBJECT="there are corrupt flacs in the system"
		[ "$MAILFROM" ] && (cat scrub.log | mail -s "$SUBJECT" -S from="$MAILFROM" $MAILTO) || (cat scrub.log | mail -s "$SUBJECT" $MAILTO)
	fi
fi;