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32 lines
1.5 KiB
32 lines
1.5 KiB
#!/bin/bash -x
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COUNTER=0
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while test $COUNTER -lt 1; do #run forever #this seems to expect a file named 1 in the directory. no idea why. EDIT: that was with counter < 1. must use -lt
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#if load gt 1, then load == 1
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LOAD=$(cat /proc/loadavg | cut -c 1-4)
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FIRSTVAL=$(echo $LOAD | cut -c 1) #check if 1 or higher
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test $FIRSTVAL == 1; #is equal to 1?
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if test $? == 0; then #return value
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FINALVAL=47
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fi
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test $FIRSTVAL > 1;
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if test $? == 0; then #if test is succesful, returns zero, so we are looking for a zero
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FINALVAL=47
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fi
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test $FIRSTVAL < 1;
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if test $? == 0; then #i know this isn't efficient. could combine if else. dont care.
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FINALVAL=$(echo $LOAD | cut -c 3-4)
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fi
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echo $FINALVAL
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#otherwise load x 47 == VAL
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DIVIDEBYTWO=$(expr $FINALVAL / 2) #must be space between / and numbers
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# if test $DIVIDEBYTWO > 50; then #hmmm... needs -gt not >
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# DIVIDEBYTWO=50;
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# fi
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# echo "DIVIDEBY TWO IS: $DIVIDEBYTWO"
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#seems to need a space after the first funct. parenthesis, and the call to function
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#seems to not like function named gopher, so set to go4. perhaps character limit.
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echo "(defun go4() (with-i2c (str 96) (write-byte #x40 str) (write-byte $DIVIDEBYTWO str) (write-byte #x00 str))) (go4)" > /dev/ttyUS>
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# echo " (go4)" > /dev/ttyUSB0
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sleep 5
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done
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