24 lines
756 B
Bash
24 lines
756 B
Bash
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# Sort urls-cache-backup.txt (what we already have backed up).
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cat $(dirname $0)/urls-cache-backup.txt \
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sort \
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uniq - $(dirname $0)/urls-cache-backup.sorted.txt \
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&& \
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# Sort urls-cache.txt (what's available on images.neopets.com).
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cat $(dirname $0)/urls-cache.txt \
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sort \
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uniq - $(dirname $0)/urls-cache.sorted.txt \
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&& \
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# Compute the diff between these two files, filtering to lines that start
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# with "> ", meaning it's in urls-cache.txt but not in urls-cache-backup.txt.
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diff $(dirname $0)/urls-cache-backup.sorted.txt $(dirname $0)/urls-cache.sorted.txt \
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grep '^>' \
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sed 's/^>\s*//' \
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# Output to urls-cache-delta.txt, and to the screen.
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tee $(dirname $0)/urls-cache-delta.txt
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