use strict;
use warnings;
my $string = "I love     my nation";
#leaving one space and substitute 2 or more spaces with comma globally
$string =~ s/\s{2,}/,/g; 
print "$string\n";

[download]

Output:

I love,my nation

In reply to Re: Replace only tab space with commas by Nikhil Jain
in thread Replace only tab space with commas by sufi

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