Cleanup stuff

cleanup.sh

#!/bin/bash

# remove shit from downloads
shopt -s nullglob dotglob

current_time=`date +%s`

max_age_days=${1:-30}
max_age_days=$((max_age_days))

if [ $max_age_days -le 0 ]; then
	>&2 echo "Usage: $0 [max age in days]"
	>&2 echo "Delete old files from some user directories"
	exit 255
fi

age_deadline=$((current_time - max_age_days * 24 * 60 * 60))

echo "Looking for files older than $max_age_days day(s)"

deletion_paths=~/Downloads

declare -a to_delete

for path in $deletion_paths; do
	files=("$path/"*)
	for f in "${files[@]}"; do
		ftime=$((`stat -c %Z "$f" 2>/dev/null`))
		if [ $ftime -lt $age_deadline ]; then to_delete+=("$f"); fi
	done
done

if [ ${#to_delete[*]} -eq 0 ]; then
	echo 'No old files found.'
	exit 0
fi

shopt -s checkwinsize

lines=`tput lines`
if [ ${#to_delete[*]} -gt $((lines - 5)) ]; then
	output_cmd=less
else
	output_cmd=cat
fi


print_pending() {
	echo "The following ${#to_delete[*]} file(s)/directories are old and will be deleted:"
	for f in "${to_delete[@]}"; do
		changed=`stat -c %Z "$f" 2>/dev/null`
		age=$(((current_time - changed) / (24 * 60 * 60)))
		fsize=`du -sh "$f" | awk '{ print $1 }'`
		stat -c "%n [%F, $fsize], changed $age days ago" "$f" 2>/dev/null || echo "$f (??)"
	done
	total_size=`(du -csh "${to_delete[@]}" | tail -n 1 | cut -f1 ) 2> /dev/null`
	echo "Total size: $total_size"
}

print_pending | $output_cmd
prompt='Remove all listed files? [yes/no; `list` to list again] '
while read -p "$prompt" answer; do
	case ${answer,,} in
		y|ye|yes)
			rm -vrf "${to_delete[@]}"
			exit $?
			;;
		n|no)
			echo 'aborting.'
			exit 1
			;;
		l|li|lis|list)
			print_pending | $output_cmd
			;;
		*)
			echo 'Invalid answer.'
			;;
	esac
done