#!/bin/bash

usage ()
{
 echo 'mimimi by Klaus-Uwe Mitterer';
 echo 'Usage: mimimi [-e]';
 echo 'Options:';
 echo '-e - Exponential';
 exit;
}

i=1;

if [ $# -gt 0 ]
 then if [ $1 != "-e" -o $# -gt 1 ]
  then usage;
 fi;
fi;

while true;

 do for ((n=0;n<$i;n++)); 
  do printf 'mi'; 
 done; 

 printf '\n'; 

 if [[ $1 = -e && $i != 1 ]]
  then i=$((i*i))
  else i=$((i+1))
 fi

done;