that's because the script is borked. If condition with -e (exists) arg is not setup correctly for wildcard searching when there is more than 1 result.

Change the lines from:


touch purgelist
if [[ -e $BKUP_PATH/$WORLD/*-incr.tgz ]]; then
        find $WORLD/*-incr.tgz -type f -mtime +$BKUP_DAYS_INCR -print > purgelist
fi
if [[ -e $BKUP_PATH/$WORLD/*-full.tgz ]]; then
        find $WORLD/*-full.tgz -type f -mtime +$BKUP_DAYS_FULL -print >> purgelist
fi

to:


touch purgelist
if [[ -e `echo $BKUP_PATH/$WORLD/*-incr.tgz | cut -d " " -f1` ]]; then
        find $WORLD/*-incr.tgz -type f -mtime +$BKUP_DAYS_INCR -print > purgelist
fi
if [[ -e `echo $BKUP_PATH/$WORLD/*-full.tgz | cut -d " " -f1` ]]; then
        find $WORLD/*-full.tgz -type f -mtime +$BKUP_DAYS_FULL -print >> purgelist
fi