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22 lines
286 B
Bash
Executable File
22 lines
286 B
Bash
Executable File
#!/bin/sh
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#
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if [ $# -lt 2 ]; then
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echo "$0: <low> <high>"
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exit 1;
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fi
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l=$1
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h=$2
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s=$(expr $h - $l)
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r=$(head --bytes=2 /dev/urandom | od -l | head -n 1 | sed -e 's/^[^ ]* *//')
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v=$(expr $r % $s)
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d=$(expr $l + $v)
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echo "$0: sleep $d ... start"
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sleep $d
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echo "$0: sleep $d ... end"
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