8 lines
350 B
Plaintext
8 lines
350 B
Plaintext
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#!/bin/sh -e
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# Automatically set screen brightness based on time of day.
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# OLD: value=$(expr 100 - $(expr 13 - $(date +%H) | tr -d -) \* 5)
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# S Function: echo "(c($(date +%H) / 4 - 3) + 1) * 50" | bc -l
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value=$(echo "l=(100 - 1.5 * ( 11 - $(date +%H) ) ^ 2); if(l > 0) l else 3" | bc -l)
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light -S $value
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{ date && echo $value; } >>/var/log/autolight
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