Created
February 5, 2013 05:54
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Reliably run snowcam.sh at :00/:20/:40 seconds
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| boot=$((SECONDS % 20)) | |
| time=$(($(date +%s) % 20)) | |
| offset=$((20-(time-boot))) | |
| echo "boot=$boot time=$time offset=$offset" | |
| while [ 1 ]; do | |
| while [ $(((SECONDS-offset) % 20)) -lt 18 ]; do sleep 1; done | |
| while [ $(((SECONDS-offset) % 20)) -lt 19 ]; do echo >/dev/null; done | |
| sleep 1 | |
| ./snowcam.sh || exit | |
| done |
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