#!/usr/bin/env zsh
set -e
setopt EXTENDED_GLOB
for f (feeds/*) {
    [[ -s $f/max ]] && max=`cat $f/max` || max=${FEEDER_MAX_ITEMS:-100}
    (( max++ ))
    [[ $max -eq 1 ]] || rm -fv $f/cur/*(Nom[$max,-1])
}