Re: CDPATH and shell scripts
Russ Allbery <email@example.com> writes:
> Jonathan Yu <firstname.lastname@example.org> writes:
>> How to fix them? Write Perl scripts, and turn on taint checking --
>> that fixes the four issues above, because it makes the script exit if
>> any of them look dangerous. Env::Sanctify::Auto is a Perl module that
>> automatically cleans up the paths.
>> My advice:
>> 1. Write scripts that might be run as root (or setuid root) using Perl
>> 2. Turn on taint checking
>> 3. Consider using Env::Sanctify::Auto (shameless plug)
> I would really prefer that people not start writing maintainer scripts
> in Perl as a matter of course. Perl is harder to analyze for programs
> like lintian than shell scripts (which are already hard enough).
> Russ Allbery (email@example.com) <http://www.eyrie.org/~eagle/>
Not to mention humans. :)