print "Enter the common character in the batch file:\n";

$t=<STDIN>;

print "Enter the number in the first batch file:\n";

$f=<STDIN>;

print "Enter the number in the last batch file:\n";

$l=<STDIN>;

for ($i=$f;$i<=$l; $i++)

  { 
    
     #$t="file";  
     #$concatfile=$t.$i;     
     #$file="$concatfile.bat";
     system( "$^t$i.bat" );
     #system($file);
     sleep(2);


  }