The following code shows one way to tackle this problem:
#! perl
use Modern::Perl;
my $file1 = 'amayaM vismayaM souraM kamalZ';
my $file2 = 'amayamAn vismayamAn souramA kamalAni';
my %words1 = map { $_ => undef } split /\s+/, $file1;
my @words2 = split /\s+/, $file2;
for my $word2 (@words2)
{
for my $word1 (keys %words1)
{
my $stem = substr($word1, 0, -1);
my $len = length $stem;
if (substr($word2, 0, $len) eq $stem)
{
say $word1, ' -> ', $word2, ' -> ', $stem, '+', substr($wo
+rd2, $len);
last;
}
}
}
Output:
19:21 >perl 415_SoPW.pl
amayaM -> amayamAn -> amaya+mAn
vismayaM -> vismayamAn -> vismaya+mAn
souraM -> souramA -> soura+mA
kamalZ -> kamalAni -> kamal+Ani
19:22 >
Hope that helps,
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