Re: [Help-bash] Why won't set -v work?

[Greg Wooledge]

On Thu, Mar 15, 2012 at 08:18:10AM -0600, Bill Gradwohl wrote:
> I'm experimenting and came up with something I can't explain.
> 
> #!/bin/bash
> declare parm='pass1'
> #case "${parm}" in
> #   'pass1')
>       set -v
>       if true; then echo True; fi
> #    ;;
> #   *)
> #   echo Hello
> #   ;;
> #esac
> 
> When executed, the above works as expected.
> 
> If you remove the octothorpes to activate the case statement and run it
> again, the set -v appears non functional.

Manual says:

           -v      Print shell input lines as they are read.

The entire case statement is read without "-v" in effect.  Another line
isn't read by bash until after the esac.