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20 lines
365 B
Bash
20 lines
365 B
Bash
6 years ago
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#!/bin/sh
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# OKI 320 ML tests
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# this test is to generate (crap) random 8 pin mode patterns
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#PRNG
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function rand {
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echo "obase=8;`expr $RANDOM % 256`" | bc
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}
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function randpat {
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n=1
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while [ $n -le 256 ]; do
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RND=`rand`
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echo -ne '\'$RND
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n=$((n+1))
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done
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}
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PATTERN=`randpat`
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# noise
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# PATTERN2=`head /dev/urandom -c 1024`
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echo -e '^[@^[5^[9^[*1\4'$PATTERN'^[@' | lp -o raw
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