rushs/tinyprintf/80cols/80cols.sh


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#!/bin/sh

[ $# -ne 1 ] && exit 1
[ -f $1 ] || exit 1

while IFS='' read -r line; do
    var=$(printf '%s' "$line" | wc -m)
    [ "$var" -ge 80 ] && printf '%s\n' "$line"
done < "$1"

exit 0