Brethren,

I want to test if a file is writable by the group or world. What I tried is below, but test three fails unexpectedly 

#!/usr/bin/perl

use strict;
use warnings;
use Data::Dumper;
use feature 'say';
use Test::More;
use File::stat;

my $file = $ARGV[0];
my $sb = stat( $file );
my $mode = $sb->mode & 0777;

warn "mode of [$file] is [$mode]";

ok( -O $file, "File owned by real uid" );
ok( -f $file, "File is a plain file" );
ok( ! $mode & 022, "File is not group or world writable" );

done_testing;

# Results in:
mode of [/etc/passwd] is [420] at ./foo.pl line 14.
not ok 1 - File owned by real uid
#   Failed test 'File owned by real uid'
#   at ./foo.pl line 16.
ok 2 - File is a plain file
not ok 3 - File is not group or world writable
#   Failed test 'File is not group or world writable'
#   at ./foo.pl line 18.
1..3
# Looks like you failed 2 tests of 3.

[download]

Neil Watson
watson-wilson.ca

In reply to Testing for group or world writable files by neilwatson

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.