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Groups > gnu.bash.bug > #16477

Re: An xtrace variant

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From worley@alum.mit.edu (Dale R. Worley)
Newsgroups gnu.bash.bug
Subject Re: An xtrace variant
Date Sun, 28 Jun 2020 21:49:19 -0400
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Eli Schwartz <eschwartz@archlinux.org> writes:
> Why not just run bash -x script-name without the bash -l option and
> without $BASH_ENV set?
>
> The first is implicitly true based on your stated command line. The
> second doesn't seem like a high bar to set, and it's not exactly default
> behavior... if you really do need $BASH_ENV can't you do the set -x at
> the end of that file?

That's a good point, and I admit I've never studied out all of the logic
of Bash init files; I assumed that it executed ~/.bashrc as a matter of
course.

So as long as I don't need the facilities in .bashrc for the script,
then "BASH_ENV= bash ..." suffices.

In regard to "can't you do the set -x at the end of that file", (1) it's
inelegant and a PITA, and (2) it sauses sub-scripts to generate
debugging output.

Dale

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Re: An xtrace variant worley@alum.mit.edu (Dale R. Worley) - 2020-06-28 21:49 -0400

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