[Koha-devel] chmod
dbkliv
dbkliv at netscape.net
Fri Jul 4 09:26:05 CEST 2003
Matthew Hunt wrote:
> On Wed, Jul 02, 2003 at 11:39:17PM -0700, D Belden K Lyman IV wrote:
>
>>Removing oct() would be a micro-optimisation at best, and could
>>potentially introduce a hard-to-track-down bug:
>>
>> 1. my $mode = 0644 ;
>> chmod( $mode, $file );
>>
>> 2. chmod( '0644', $file );
>>
>> 3. chmod( 0644, $file );
>>
>>You need oct() in the first 2 cases.
>>
>>dbkliv
>>
>>[1] - http://www.perldoc.com/perl5.8.0/pod/func/chmod.html
>
>
> The manpage that you refer to explicitly contradicts what you say
> above:
>
> $mode = '0644'; chmod $mode, 'foo'; # !!! sets mode to --w----r-T
> $mode = '0644'; chmod oct($mode), 'foo'; # this is better
> $mode = 0644; chmod $mode, 'foo'; # this is best
>
> You only need oct() in the second case that you gave. I mention
> this only in the interest of accuracy, I don't want to start an
> argument.
>
> Matt.
Whoops, thanks for the correction Matt. I'd meant to include 4 cases:
1. my $mode = '0644' ; chmod $mode, $file ; # needs oct()
2. chmod '0644', $file ; # needs oct()
3. my $mode = 0644 ; chmod $mode, $file ; # no oct() needed
4. chmod 0644, $file ; # no oct() needed
dbkliv
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