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Date:      Fri, 14 Apr 2017 14:32:08 -0400
From:      Ernie Luzar <luzar722@gmail.com>
To:        Chuck Swiger <cswiger@mac.com>
Cc:        FreeBSD current <freebsd-current@freebsd.org>
Subject:   Re: csh script help
Message-ID:  <58F115A8.8010407@gmail.com>
In-Reply-To: <9A420780-8DEB-4FBA-9CDE-A9E152110E38@mac.com>
References:  <58F0D301.7000509@gmail.com> <9A420780-8DEB-4FBA-9CDE-A9E152110E38@mac.com>

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Chuck Swiger wrote:
> On Apr 14, 2017, at 6:47 AM, Ernie Luzar <luzar722@gmail.com> wrote:
>> To aid in debugging the script I'm writing, I place "echo" commands throughout so I can kind of have a trace of the logic as different conditions are processed. Normally I just delete these "echo" commands after I get the script working.
> 
> Since you've gotten an answer to the question you asked, let me only note that both sh and csh support the -x flag, which causes the shell to echo the commands as it runs.  This is extremely helpful for debugging.
> 
> Regards,

Where is the this -x flag coded at?  Do the executed lines roll fast off 
the screen or can I slowly step through the script a line at a time?

Thanks for this bit of information.



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