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robmiller/poll.sh

Last active December 15, 2015 06:28
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ZSH one-liner to poll every five seconds to see whether a site is updated. Replace "example.com" with your domain, obviously. Relies on your site sending sensible "Age" headers.
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poll.sh
while true; do [[ `curl -ILs http://example.com/ | grep 'Age:' | sed 's/Age: //'` < 10 ]] && say "It updated"; sleep 5; done
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