Generate lines of a specified length using a specified character with Bash

makeline.sh

#! /bin/bash
#================================================================================#
#            ___  ___  ___   _   __ _____ _     _____ _   _  _____ 
#            |  \/  | / _ \ | | / /|  ___| |   |_   _| \ | ||  ___|
#            | .  . |/ /_\ \| |/ / | |__ | |     | | |  \| || |__  
#            | |\/| ||  _  ||    \ |  __|| |     | | | . ` ||  __| 
#            | |  | || | | || |\  \| |___| |_____| |_| |\  || |___ 
#            \_|  |_/\_| |_/\_| \_/\____/\_____/\___/\_| \_/\____/ 
#
#________________________________________________________________________________
#
#    makeline.sh
#
#    Generate lines of a specified length using a specified character with Bash
#    Created by h8rt3rmin8r on 20190127
#
#================================================================================#

# VARIABLE ASSIGNMENTS

LINE_COUNTER=0
CHAR=""
LENGTH=""

# Assign variables based on user inputs
# Generate default fallback variables if no inputs are present

if [[ "x$1" == "x" ]]; then CHAR="="; else CHAR="$1"; fi
if [[ $# -lt 2 ]]; then LENGTH="80"; else LENGTH="$2"; fi

# EXECUTE OPERATIONS

while [[ ${LINE_COUNTER} -lt "${LENGTH}" ]];
do
    printf '%s' "${CHAR}"
    let LINE_COUNTER=LINE_COUNTER+1
done
#echo

#================================================================================#