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Re: echo $'\0' >a does not write the nul byte

From: Martin Schulte
Subject: Re: echo $'\0' >a does not write the nul byte
Date: Mon, 18 Jan 2021 08:32:19 +0100

Hello Ilkka, hello *!

> Bash's echo is a builtin, so using it doesn't involve an execve().

Sure – but while passing a string (however it will be encoded) containing a 
null byte to builtins would be possible in principle (as zsh shows) this would 
lead to a large bunch of problems, e.g. another incompatibility between the 
builtin and the external echo.

Best regards


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