Re: Bad substitution breaks conditional statement

[Chet Ramey]

On 10/13/20 11:43 PM, 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.

They are not both syntax errors. The first is a word expanion error. The
second is a syntax error because `;;' is an operator and it's not valid in
that context.


-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/