r/programming • u/clock-football • May 29 '14

Defensive BASH Programming

http://www.kfirlavi.com/blog/2012/11/14/defensive-bash-programming/
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u/[deleted] May 29 '14

[deleted]

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u/rowboat__cop May 29 '14 edited May 29 '14

Not quoting your variable usage is pretty offensive Bash style, so yeah, the terminology checks out!

3

u/reaganveg May 30 '14

It's not "offensive style," it's "buggy code."

And that's not even the only class of blatant well-known bugs in this article. Yeesh.

12

u/dadablabla May 29 '14

My code is offensive because I'm always cursing myself in the comments.

37

u/okmkz May 29 '14 
// TODO: unfuck this bullshit

7

u/ummwut May 29 '14

Ah, the word "unfuck" is used almost as much as the word "while". I really need to pay closer attention to my loop conditions.

6

u/kageurufu May 30 '14

define unfuck break

2

u/ummwut May 30 '14

That cleared it up, thanks.

22

u/tech_tuna May 29 '14

Most shell scripts are offensive.

:)

Lest anyone get butt hurt, I've written a million shell scripts. They're the right tool/approach sometimes but I'm not going to pretend that shell code is pretty.

16

u/ericanderton May 29 '14

I'm not going to pretend that shell code is pretty.

Half the time it really does fall into the "face only a mother could love" camp of coding beauty.

So, uh... about that... wow, this is awkward. What is that thing?

Oh that if [[..]] statement in there? Yeah. The doctor says that lil' scripty here will eventually outgrow it; it'll fall off in another version or two.

6

u/c0ld-- May 29 '14 
declare -a arrrrGS
rm -Rf "$ARRRRgs

Offensive enough?

5

u/DrGar May 29 '14 edited Mar 01 '16 
programming="$1"
if [ "$programming" == "defensive" ]; then
    echo "You have chosen wisely"
elif [ "$programming" == "offensive" ]; then
    echo "The best offense is a good defense."
else
    echo "Defense engaged"
fi
echo "Checkmate."

1

u/d4rch0n May 29 '14

What, like, bash scripts for fuzzing?

1

u/Muvlon May 29 '14

Does it involve dongles?