http://www.perlmonks.org?node_id=1025913


in reply to Increment a string with letters and numbers

G'day mrguy123,

The following substitution should do what you want:

s/(\d+)$/my $y = $1; ++$y/e

In use with your specific example:

$ perl -Mstrict -Mwarnings -E ' my $x = q{EVO:0000023}; $x =~ s/(\d+)$/my $y = $1; ++$y/e; say $x ' EVO:0000024

And, assuming you want 0000099 to roll over to 0000100, this works unchanged:

$ perl -Mstrict -Mwarnings -E ' my $x = q{EVO:0000099}; $x =~ s/(\d+)$/my $y = $1; ++$y/e; say $x ' EVO:0000100

-- Ken