counts.bash

#!/bin/bash
READFILE=${1:-/dev/stdin}
printf "LINE_NUM\tBYTE_SUM\tCHAR_LEN\tBYTE_LEN\tLINE"
LINNUM=0
BYTE_SUM=0
O_LANG=$LANG O_LCALL=$LC_ALL
while IFS= read -r line
do
        echo "$line"
        LINNUM=$((LINNUM+1))
        CHAR_LEN=${#line}
        CHAR_LEN=$((CHAR_LEN+1)) #for newline consumed by 'read'
        LANG=c LC_ALL=C
        BYTE_LEN=${#line}
        BYTE_LEN=$((BYTE_LEN+1)) #for newline consumed by 'read'
        LANG=$O_LANG LC_ALL=$O_LCALL
        BYTE_SUM=$((BYTE_SUM+BYTE_LEN))
        printf "%d\t%d\t%d\t%d\t%s\n" $LINNUM $BYTE_SUM $CHAR_LEN $BYTE_LEN "$line"
done < $READFILE

linewithchar.bash

#!/bin/bash
counts "$1" | awk '$2 > '$2' {print ;}' | head -n 1