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Groups > comp.os.linux.misc > #29618

Re: tip for improving your shell skills

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In comp.os.linux.misc, Chris F.A. Johnson <newsgroups@cfaj.ca> wrote:
> On 2020-04-02, Eli the Bearded wrote:
> > By running:
> > echo "set -e" >> ~/.bash_profile
> > You can put your shell (well, at next login) into an enhanced error
> > checking mode.
>    "Enhanced" is overstating the case; it does very limited error
>    checking.

It does very effective error checking, but it's very painful for
interactive shells. 

>    Bash only includes it because POSIX requires it.

If true, that's very stupid. It is extremely useful in writing shell
scripts that do not blindly continue running after an error. It is
the belt to the suspenders of writing code that checks errors. You do
write code that checks errors, don't you?

I posted that as an April Fools suggestion. I was inspired after
sourcing a file that used "set -e" because I wanted to run a function
it defined. And then ten minutes later doing something and finding
my ssh connection suddenly closed.

Elijah
------
set the Keywords header in the original post as a hint

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tip for improving your shell skills Eli the Bearded <*@eli.users.panix.com> - 2020-04-02 00:09 +0000
  Re: tip for improving your shell skills Bit Twister <BitTwister@mouse-potato.com> - 2020-04-01 23:04 -0500
  Re: tip for improving your shell skills "Chris F.A. Johnson" <cfajohnson@cfaj.ca> - 2020-04-01 23:40 -0400
    Re: tip for improving your shell skills Eli the Bearded <*@eli.users.panix.com> - 2020-04-02 17:17 +0000
    Re: tip for improving your shell skills Richard Kettlewell <invalid@invalid.invalid> - 2020-04-03 08:20 +0100
      Re: tip for improving your shell skills "Chris F.A. Johnson" <cfajohnson@cfaj.ca> - 2020-04-06 18:08 -0400

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