10-17-2007
files cross over
I have many files (File 1, File 2, File 3, ...) in same directory.
The format of all these files are same.
What I would like to do is to combine all these files into a single file via cross over.
Example)
>>File 1 look like this.
f1 01 1.0
f1 02 2.0
f1 03 3.0
f1 04 4.0
f1 05 5.0
f1 06 6.0
.
.
>>File 2 look like this
f2 01 21.0
f2 02 22.0
f2 03 23.0
f2 04 24.0
f2 05 25.0
f2 06 26.0
.
.
>>File 3 look like this
f3 01 31.0
f3 02 32.0
f3 03 33.0
f3 04 34.0
f3 05 35.0
f3 06 36.0
.
.
The result should look like this.
f1 1.0 2.0 3.0
f2 21.0 22.0 23.0
f3 31.0 32.0 33.0
f1 4.0 5.0 6.0
f2 24.0 25.0 26.0
f3 34.0 35.0 36.0
.
.
Thanks in advance.
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LEARN ABOUT DEBIAN
apache::session::store::file
Apache::Session::Store::File(3pm) User Contributed Perl Documentation Apache::Session::Store::File(3pm)
NAME
Apache::Session::Store::File - Store persistent data on the filesystem
SYNOPSIS
use Apache::Session::Store::File;
my $store = new Apache::Session::Store::File;
$store->insert($ref);
$store->update($ref);
$store->materialize($ref);
$store->remove($ref);
DESCRIPTION
This module fulfills the storage interface of Apache::Session. The serialized objects are stored in files on your filesystem.
OPTIONS
This module requires one argument in the usual Apache::Session style. The name of the option is Directory, and the value is the full path
of the directory where you wish to place the files. Example
tie %s, 'Apache::Session::File', undef,
{Directory => '/tmp/sessions'};
NOTES
All session objects are stored in the same directory. Some filesystems, such as Linux's ext2fs, have O(n) performance where n is the
number of files in a directory. Other filesystems, like Sun's UFS, and Linux's reiserfs, do not have this problem. You should consider
your filesystem's performance before using this module to store many objects.
AUTHOR
This module was written by Jeffrey William Baker <jwbaker@acm.org>.
SEE ALSO
Apache::Session
perl v5.10.1 2010-10-18 Apache::Session::Store::File(3pm)