Generate voicemail PINs

generate_pins.sh

#!/bin/bash

read -p "       Starting number? " startnum_int
read -p "         Ending number? " endnum_int
read -p "       Randomize (y/n)? " randomize_bool
read -p "      Pad digits (y/n)? " paddigits_bool
if [[ "$paddigits_bool" == "y" ]]
then
    read -p "PIN length for padding? " pinlength_int
else
    pinlength_int=0
fi

pinlength="0${pinlength_int}g"

echo "Generating:"
echo "----------"
echo " Start: $startnum_int  "
echo "   End: $endnum_int    "
echo "Random: $randomize_bool"
echo "   Pad: $paddigits_bool"
echo "Length: $pinlength_int "
echo "----------"

the_date=$(date +"%m-%d-%Y_-_%H-%M-%S-%p")
output_file="password_list_-_${the_date}.txt"

if [[ "$paddigits_bool" == "y" ]]
then
    for i in $(seq -f "%${pinlength}" $startnum_int $endnum_int)
    do
      echo $i >> $output_file
      echo $i
    done
    if [[ "$randomize_bool" == "y" ]]
    then
        cat $output_file | shuf > password.temp && mv password.temp $output_file
    fi
else
    for i in $(seq $startnum_int $endnum_int)
    do
      echo $i >> $output_file
      echo $i
    done
    if [[ "$randomize_bool" == "y" ]]
    then
        cat $output_file | shuf > password.temp && mv password.temp $output_file
    fi
fi


echo "Done. file saved to: "$output_file