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

[Steven W. Orr]

On 3/15/2012 10:47 PM, Bill Gradwohl wrote:
> On Thu, Mar 15, 2012 at 12:24 PM, Greg Wooledge <address@hidden
> <mailto:address@hidden>> wrote:
>
>     What is it that you think set -v actually does?  What's your goal in
>     using it?
>
>
> I've used -v before on simple test scripts and under simple conditions I got
> what I was expecting. -v in a more demanding environment such as the case
> statement is useless - I agree.
>
> I thought it was going to echo the lines of code as they were being executed,
> much like -x only without all the -x hieroglyphics. I was hoping to use both
> simultaneously to read a line of code via -v and then see the -x version along
> side. That would be handy. As it is, -v is not usable for anything of any
> consequence.

This is bash.

+

This is bash  with a crafty PS4/

export PS4='+${0##*/} line $LINENO: '

Enjoy.

> I tried reading up on the debugger and got lost. I guess I'll give it a try
> again as I want something that can single step, display intermediate results,
> etc without resorting to echo this and echo that at the source code level. I
> thought -v might provide some relief, but no such luck.
>
> --
> Bill Gradwohl


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