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#!/bin/sh
# rnl - remove final newlines
tr1='\012 '
tr2=' \012'
pat='$s/ *$/ /'
while getopts 0aso opt; do
case "$opt" in
0) tr1='\0 '; tr2=' \0';;
a) pat='$s/ *$//';;
s) pat='$s/ *$/ /';;
o) pat='$s/ $//';;
'?') exit 1;;
esac
done
tr "$tr1" "$tr2" | sed "$pat" | tr "$tr2" "$tr1"
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