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Bozo User <anthk@disroot.org> writes:On 2024-04-07, Lawrence D'Oliveiro <ldo@nz.invalid> wrote:strictlyOn Sun, 07 Apr 2024 00:01:43 +0000, Javier wrote:
>The downside is the loss of performance because of disk access for>
trivial things like 'nfiles=$(ls | wc -l)'.
Well, you could save one process creation by writing
“nfiles=$(echo * | wc -l)” instead. But that would still not be>correct.>
>I suspect disk access times where>
one of the reasons for the development of perl in the early 90s.
Shells were somewhat less powerful in those days. I would describe the
genesis of Perl as “awk on steroids”. Its big party trick was regular
expressions. And I guess combining that with more sophisticated data-
structuring capabilities.
Perl is more awk+sed+sh in a single language. Basically the killer
of the Unix philophy in late 90's/early 00's, and for the good.
Perl is a high-level programming language with a rich syntax¹, with
support for deterministic automatic memory management, functions as
first-class objects and message-based OO. It's also a virtual machine
for executing threaded code and a(n optimizing) compiler for translating
Perl code into the corresponding threaded code.
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