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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
imgurls=`cat "$1" \
| awk -F \( '/!\[[^\]]*\]\([^\)]*\)/ {print $2}' \
| sed 's/)\]$//' \
| awk '{print $1}'`
for i in $imgurls; do
echo "$i" | grep -q '//'
test $? -ne 0 && i="${2}${i}"
wget "$i"
done
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