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I have a chain.

I can extend this chain indefinitely.

For beginners, this chain is hard to understand.

They call it magical, yet it is not in reality.

I used to only declare.

But with this chain, I can finally command.

[Maybe, this chain is made from Io.]

What am I and what is this chain?

Subtle Hint:

Though there is only one kind of the chain, it comes in various types. Three types are mentioned in the text.

Moderate Hint:

The chain can be so many things. It can be a writer, it can be a reader, it can be a parser, it can store states, and many other things.

Moderate Hint 2:

There is a sugar. The chain can be done.

Decisive Hint:

I am in seven letters. The chain is in five letters.

Decisive Hint 2:

I start with 'H'. The chain starts with 'M'.

Decisive Hint 3:

I end with 'l'. The chain ends with 'd'.

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  • $\begingroup$ I'm thinking rot13(uggcf://ra.jvxvcrqvn.bet/jvxv/Punva-bs-erfcbafvovyvgl_cnggrea), but I'm not seeing a clear mapping. $\endgroup$ – Avi Oct 12 '19 at 21:53
  • $\begingroup$ @Avi Nah, that's irrelevent. (On the second thought, that might be somehow relevent.) $\endgroup$ – Dannyu NDos Oct 12 '19 at 22:00
  • $\begingroup$ Good to know :) $\endgroup$ – Avi Oct 12 '19 at 22:01
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You are

The Haskell programming Language

And the chain is

A monad

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  • $\begingroup$ Correct! I'd like you to explain each clues. $\endgroup$ – Dannyu NDos Oct 13 '19 at 22:05
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Is it

A program's compilation chain?

I'll add more details if this is correct....mainly due to actually having to study to do this.

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  • $\begingroup$ Close. Very close. $\endgroup$ – Dannyu NDos Oct 12 '19 at 21:42
  • $\begingroup$ rot13(Lbh ner evtug gb guvax vg eryngrq gb cebtenzzvat.) $\endgroup$ – Dannyu NDos Oct 12 '19 at 21:55
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For beginners, this chain is hard to understand.

it's a somewhat advanced concept

I used to only declare. But with this chain, I can finally command.

.

What you say can now be commmands to another process

.

[Maybe, this chain is made from Io.]

actually it is made from

I/O input and output

.

What am I and what is this chain?

.

You a process producing output, and the chain is a shell pipeline

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  • $\begingroup$ Another close answer! $\endgroup$ – Dannyu NDos Oct 13 '19 at 9:15
  • $\begingroup$ rot13(Lbhe vagrecergvba bs "Vb" vf pbeerpg, ohg vg vf whfg n glcr bs gur punva.) $\endgroup$ – Dannyu NDos Oct 13 '19 at 9:16
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Since It would declare earlier but can now command others

Is I a programmer and the chain is a programming language or a computer ?

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  • $\begingroup$ rot13(Ab. V nz n cebtenzzvat ynathntr.) $\endgroup$ – Dannyu NDos Oct 13 '19 at 10:05
  • $\begingroup$ Ok . would keep it in mind $\endgroup$ – The Demonix _ Hermit Oct 13 '19 at 10:07

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