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Re: redirect STDOUT from system() function

by ChOas (Curate)
on Aug 10, 2001 at 12:24 UTC ( [id://103794]=note: print w/replies, xml ) Need Help??


in reply to redirect STDOUT from system() function

Hi!

How about using backticks: 
#!/usr/bin/perl -w
use strict;

my @List=`ls -al`;
print @List;

[download]
Would that do it for you ?

GreetZ!,
    ChOas

print "profeth still\n" if /bird|devil/;

Replies are listed 'Best First'.
Re: Re: redirect STDOUT from system() function
by uzzikie (Sexton) on Aug 10, 2001 at 12:59 UTC
    hi

    nope i can't use backticks as the script is running setuid...
    says the $ENV{path} is insecur
    would be a bad idea anyway....
[reply]
      Either way, Perl spawns a system call. You'll have to untaint a couple of things in %ENV. For example, this fails: 
      #!/usr/bin/perl -wT
use strict;

# delete $ENV{qw( BASH_ENV PATH )};

my $output = `/bin/ls`;
print "Output is ($output)\n";

      [download]
      Uncommenting the appropriate line makes it work, at least on my box. Depending on what's tainted, you may have to do a little more work.
[reply]
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