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Full Discussion: Sorting files by size in another directory
Homework and Emergencies Homework & Coursework Questions Sorting files by size in another directory Post 302900094 by Don Cragun on Sunday 4th of May 2014 05:36:13 AM
Old 05-04-2014
Each call to system() creates a separate shell execution environment. Once the commands given to a call to system() complete, that environment is gone.

So, if you call system two times:
Code:
    system("cd some_directory");
    system("ls -al | sort -k5n");

the first call will not affect the directory in which the second call is run. But, if you perform the cd and the ls and sort pipeline in the same call to system() as in:
Code:
    system("cd some_directory
        ls -al | sort -k5n");
                or
    system("cd some_directory; ls -al | sort -k5n");

then the cd command will affect the directory where the pipeline executes.

Do you want the primary sort key of your output to be the file size and the secondary sort key to be the file type? Would you prefer to sort the output with the primary sort key being the file size and the secondary sort key being the file name? Have you looked at all of the options that the ls utility accepts on your system? Do you need both ls and sort? Is there an option to ls that will sort the output by file size and file name instead of having the primary sort key be the file name? If that output is backwards, is there an option to reverse the order of the output produced by ls?
 

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LEARN ABOUT DEBIAN

svn::web::i18n

SVN::Web::I18N(3pm)					User Contributed Perl Documentation				       SVN::Web::I18N(3pm)

NAME

       SVN::Web::I18N - SVN::Web internationalisation class

SYNOPSIS

	 use SVN::Web::I18N;			# Nothing exported

	 # Add a directory that contains .po and/or .mo files
	 SVN::Web::I18N::add_directory('/path/to/directory');

	 # Specify the current language
	 SVN::Web::I18N::loc_lang('en');

	 # Get a translated string
	 my $xlated = SVN::Web::I18N::loc('(a string to translate)');

DESCRIPTION

       SVN::Web::I18N provides the interface through which SVN::Web is internationalised, and how different localisations are implemented.

SUBROUTINES

   SVN::Web::I18N::add_directory($path)
       Adds a new directory to the list of directories in which localisations will be found.  Any *.po and *.mo files in this directory will
       automatically be scanned for localisations, and added to the language key given by the file's basename.

       In case where two different directories both contain a localisation file that defines the same localisation key for the same language, the
       localisation key from the most recently added directory will be used.

   SVN::Web::I18N::loc_lang($lang)
       Selects the language to use for subsequent calls to "loc()".  The $lang parameter should be a valid language name -- i.e., there must exist
       at least one $lang.po file in one of the directories used in a call to "SVN::Web::I18N::add_directory()".

   SVN::Web::I18N::loc($text)
       and

   SVN::Web::I18N::loc($text, $param1, ...)
       Returns the localised form of $text according to the localisation selected by the most recent call to "loc_lang()".

       If the localisation expects parameters to fill in the localisation result they should be passed as the second and subsequent arguments.

       If $text does not have a defined localised form it is returned with the parameters interpolated in to it.

SEE ALSO

       Locale::Maketext, Locale::Maketext::Lexicon, SVN::Web

AUTHORS

       Nik Clayton "<nik@FreeBSD.org>"

COPYRIGHT

       Copyright 2006-2007 by Nik Clayton "<nik@FreeBSD.org>".

       This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself.

       See <http://www.perl.com/perl/misc/Artistic.html>

perl v5.14.2							    2012-06-11						       SVN::Web::I18N(3pm)
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