I did that, but I get an error, "unknown file". However, if I specify the value of $t = xyz and then $concatfile = $t.$i, it works perfectly. The moment I enter the value of $t, it gives an error. Is there some kind of format to concat 2 strings, one of which is a variable entered during file execution, <STDIN>?

Tried the ^ too, is this what you mean? 

 
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);


  }

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Janitored by Arunbear - added code tags, as per Monastery guidelines

In reply to Re^2: concatenating strings by imperl
in thread concatenating strings by imperl

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