Nice trick with split. Can be improved somewhat...
# 1 2 3 4
# 1234567890123456789012345678901234567890123
perl -e'print sort{@x=split":",$a.$b;$x[8]-$x[2]}<>' /etc/passwd
Or even:
# 1 2 3 4
# 123456789012345678901234567890123456789012
perl -e'print sort{(@x=split":",$a.$b)[8]-$x[2]}<>' /etc/passwd
Update: or with a sufficiently outdated Perl...
# 1 2 3 4
# 1234567890123456789012345678901234567890
perl5.8.9 -e'print sort{split":",$a.$b;$_[8]-$_[2]}<>' /etc/passwd
(split in void context was deprecated in 5.10 and dropped in 5.12 IIRC.)
package Cow { use Moo; has name => (is => 'lazy', default => sub { 'Mooington' }) } say Cow->new->name
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