How is usage ? 
$ ./s2p -e '/^```\w+$/{n; :a N; /\n```$/!ba }'

bash: ./s2p: perl: bad interpreter: No such file or directory

$ ./s2p

bash: ./s2p: perl: bad interpreter: No such file or directory

[download]
keep such error

In reply to Re^2: Must have CLI of Perl's sed's n command by abdan
in thread Must have CLI of Perl's sed's n command by abdan

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