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size of directory

by darshan_atha (Acolyte)
on Oct 10, 2002 at 06:43 UTC ( #204104=perlquestion: print w/ replies, xml ) Need Help??
darshan_atha has asked for the wisdom of the Perl Monks concerning the following question:

hi can anybody help me in creating a directory in perl with 777 mode i used mkdir(file ,mode); it is creating the directory but not with proper mode also wated to know the size of that directory i am using apache server thanx.

Comment on size of directory
Re: size of directory
by Zaxo (Archbishop) on Oct 10, 2002 at 06:48 UTC

    The mkdir builtin creates the directory with mode 0777 if the mask argument is omitted. There is no mode argument.

    mkdir /path/to/newdir;

    What do you mean by 'size' in the title? An empty directory has a size of one disk block.

    Update: ++podmaster reminds me of umask, which sets the current default mask applied to the creation of all new files (including directories), returning the old default mask to ease its restoration.

    Update 2: =sjs=, your perl -e'mkdir{"t")' works for me. Are you running some blighted shell that demands double quotes for -e arguments? If so, try <code>perl -e"mkdir(q(t))"

    After Compline,
    Zaxo

      when I

      > perl -e 'mkdir("t")' Not enough arguments for mkdir at -e line 1, at end of line Execution of -e aborted due to compilation errors.

      What do you mean??

Re: size of directory
by mikeirw (Pilgrim) on Oct 10, 2002 at 07:08 UTC

    If you're wanting to sum the sizes of all files within a directory, this should do it:

    my $dir = '/path/to/dir'; my $dir_size = 0; my $file; opendir DIR, $dir or die "Unable to open $dir: $!\n"; $dir_size += -s "$dir/$file" while defined( $file = readdir DIR ); closedir DIR; print $dir_size;

    This does not descend into subdirectories, though.

Re: size of directory
by zentara (Archbishop) on Oct 10, 2002 at 15:23 UTC
    Here's a dirsize method using File::Find.
    #!/usr/bin/perl -w use File::Find; use strict; my $total = 0; my $dir = $ARGV[0] || '.'; find sub {$total += -s $_;},$dir; my $megs = sprintf "%5.2f",($total/(1024*1024)); print "Total size of files in $dir:$megs Mbytes\n";

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