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Re: Is readdir ever deterministic?

by arturo (Vicar)
on Sep 17, 2001 at 18:54 UTC ( #112870=note: print w/replies, xml ) Need Help??


in reply to Is readdir ever deterministic?

I'm not qualified to comment on the variations among systems or the lack of determinism, but as far as coding defensively, you could just put a filter on the files with grep :

foreach my $file ( grep { !/^\.{1,2}$/ } readdir DIR ) { munge($file); }
perl -e 'print "How sweet does a rose smell? "; chomp ($n = <STDIN>); +$rose = "smells sweet to degree $n"; *other_name = *rose; print "$oth +er_name\n"'

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Re: Re: Is readdir ever deterministic?
by merlyn (Sage) on Sep 18, 2001 at 01:25 UTC
    Well, being truly defensive, you should have written:
    foreach my $file ( grep { !/\A\.{1,2}\z/ } readdir DIR ) { munge($file); }
    Or else the day someone creates a file named dot-newline or dotdot-newline, you'll be very angry.

    -- Randal L. Schwartz, Perl hacker

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