You mean something like this?: 

use warnings;
use strict;

my $li = "abbjghfg table 1 vinoth figer table2";
my $new_str;
while ( $li =~ m/(.+?)(table.?\d)/gc ) {
    $new_str .= $1 . '<aid=' . $2;
}
print $new_str, $/; #abbjghfg <aid=table 1 vinoth figer <aid=table2

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Update: Why to avoid using $&, $`, or $' in your program

If you tell me, I'll forget.
If you show me, I'll remember.
if you involve me, I'll understand.
--- Author unknown to me

In reply to Re: how to do replace more then one matches? by 2teez
in thread how to do replace more then one matches? by virudinesh

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