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#!/bin/sh
usage="Usage: $0 filename [urlroot]"
test $# -eq 0 && echo "$usage" && exit 1
test $# -gt 2 && echo "$usage" && exit 1
proto=`echo "$2" | awk -F : '{print $1}'`
imgurls=`cat "$1" \
| awk -F \( '/!\[[^\]]*\]\([^\)]*\)/ {print $2}' \
| sed 's/).*//' \
| awk '{print $1}' \
| sed "s/^\/\//${proto}:\/\//g" \
| sort | uniq`
for i in $imgurls; do
echo "$i" | grep -q '//'
test $? -ne 0 && i="${2}${i}"
echo "Downloading $i"
wget -q "$i"
done
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