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Jeff Schaller
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Delayed Expansion

I want to make a quine .sh script, and this is what I've made so far:

q="#!/bin/sh\nq=$q;echo \$q";echo $q

Focus on this line:

q="#!/bin/sh\nq=$q;echo \$q";echo $q

At the first occurence of $q (in \nq=$q), I first want to set the rest of the variable, and then this part (something line setlocal enabledelayedexpansion in batch files). Note that I want a solution for sh, not bash or something else, as I want portability. Also, do not give me tips on how to make my code shorter etc. I just want a solution for the problem above.

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