DD2-monitor/exemple.sh

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#!/bin/bash
DATAFILE=/tmp/fake-datafile
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#----- collect the datas
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> ${DATAFILE}
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for s in $(seq 1 1000)
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do
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v=$(./fake-values -s -t 4)
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echo $s $v >> ${DATAFILE}
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done
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tail -5 ${DATAFILE}
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#----- do dome useless computations
awk '
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NR==1 {
debut = $2
}
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{
# print $2-debut, $3
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v = int($3/35);
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bucket[v]++;
}
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END {
for (v=0; v<40; v++) {
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printf "%4d ", v;
for (foo=0; foo<bucket[v]/2; foo++) {
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printf "-";
}
print "*"
}
}
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' \
< ${DATAFILE}
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