Here is an approach using
split and avoiding a substitution:
>perl -wMstrict -le
"my $var= 'sclerosing 1954, 5-7, 54, 59f-60d, 90, 114';
my (undef, $tail) = split m{\s* , \s*}xms, $var, 2;
my $tag = qq{<t> $tail </t>};
print $tag;
"
<t> 5-7, 54, 59f-60d, 90, 114 </t>
If you feel you must use a regex substitution, read
perlre as suggested by
Perlbotics, and also
perlretut and
perlrequick, and take a look at the regex tutorials on this site:
Pattern Matching, Regular Expressions, and Parsing.
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