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#!/bin/sh
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# vim: set sw=4 ts=4 et:
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help()
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{
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cat <
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b2h -- convert binary to decimal
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USAGE: b2h [-h] binarynum
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OPTIONS: -h help text
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EXAMPLE: b2h 111010
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will return 58
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HELP
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exit 0
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}
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error()
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{
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# print an error and exit
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echo "$1"
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exit 1
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}
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lastchar()
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{
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# return the last character of a string in $rval
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if [ -z "$1" ]; then
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# empty string
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rval=""
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return
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fi
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# wc puts some space behind the output this is why we need sed:
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numofchar=`echo -n "$1" | wc -c | sed 's/ //g' `
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# now cut out the last char
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rval=`echo -n "$1" | cut -b $numofchar`
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}
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chop()
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{
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