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Re: Bad substitution breaks conditional statement

From: Andreas Schwab
Subject: Re: Bad substitution breaks conditional statement
Date: Wed, 14 Oct 2020 09:51:03 +0200
User-agent: Gnus/5.13 (Gnus v5.13) Emacs/27.1 (gnu/linux)

On Okt 14 2020, Martin Schulte wrote:

> Consider the following script:
> #!/bin/bash
> echo "${x;:-}" ; echo "Not executed"
> echo "Executed"
> echo "${x:-}" ;; echo "Not executed"
> echo "Not executed"
> <<<
> It just a source of problems that the two syntactical errors (both caused by 
> an extra semicolon) lead to different behaviour.

The difference being that the first error occurs during execution, while
the latter occurs during parsing.  The latter is also caught by bash -n.


Andreas Schwab, schwab@linux-m68k.org
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