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#!/bin/bash
if [ -z "$1" -o ! -d "$1" ]; then
echo "Usage: $0 <top-directory> [<days ago>]" 1>&2
exit 1
fi
top="${1}"
shift
source "${top}/etc/settings.sh"
tmp="$(mktemp -d)"
cd "${tmp}"
export LANG=C
export LC_ALL=C
export LC_TIME=C
wget ${wget_args} -O "$day.png" "http://www.smbc-comics.com/comics/`date -d "$daysago days ago 00:00:00" +%Y%m%d`.png"
if [ -s "${day}.png" ]; then
mv ${day}.png "${image_dir}/$day.png"
rm -f "${comic_dir}/latest.png"
ln -s "${image_offset}/$day.png" "${comic_dir}/latest.png"
fi
rm -rf "${tmp}"
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