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Full Discussion: Script to move files to a directory according to date
Top Forums Shell Programming and Scripting Script to move files to a directory according to date Post 302550888 by hfreyer on Sunday 28th of August 2011 11:38:37 AM
Old 08-28-2011
Proposal: Give date1 as "YYYY-MM-DD HH:MM". The script would then be called as:
Code:
./myscript.sh "YYYY-MM-DD HH:MM"

(if such precision not necessary, simply drop the HH:MM) and contains:
Code:
export date1=`date -d "$1" +%s`
files_to_save=`ls -ltr --time-style=+%s | \
awk 'function abs(x){return x<0 ? -x : x}BEGIN{date1=ENVIRON["date1"]}{print abs($(NF-1)-date1)"\t"$NF}' | \
sort -n -k1,1 | head -n 3 | cut -f 2`

What it does is to convert the date argument ($1) to seconds-since-epoch format
pass it as environment variable date1 inside the awk script,
which receives the output from the ls command as standard input.
The second-to-last column contains the file modification time as seconds-since-epoch
(epoch = 1970-01-01 00:00 GMT), the last column contains the filename.
These two columns are taken, from the timestamp the absolute difference
to your date argument (converted to seconds-since-epoch) is calculated,
so first column contains this absolute time difference, the second one the filename.
Then it is numnerically sorted according to the first column, i.e. the filenames with
the three smallest time differences appear in the first three lines, which are taken
by "head -n 3" and then only the second column of these three lines is taken
by "cut" to stay only with the filenames.
Finally you may add the following two lines to the script
in order to create a directory with a unique name and copy the files to it:
Code:
mkdir -p $date1
cp $files_to_save $date1

Last edited by hfreyer; 08-28-2011 at 12:44 PM..
This User Gave Thanks to hfreyer For This Post:
Mrjester
 

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LEARN ABOUT CENTOS

locale::codes::langext

Locale::Codes::LangExt(3)				User Contributed Perl Documentation				 Locale::Codes::LangExt(3)

NAME

       Locale::Codes::LangExt - standard codes for language extension identification

SYNOPSIS

	  use Locale::Codes::LangExt;

	  $lext = code2langext('acm');		       # $lext gets 'Mesopotamian Arabic'
	  $code = langext2code('Mesopotamian Arabic'); # $code gets 'acm'

	  @codes   = all_langext_codes();
	  @names   = all_langext_names();

DESCRIPTION

       The "Locale::Codes::LangExt" module provides access to standard codes used for identifying language extensions, such as those as defined in
       the IANA language registry.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default IANA language
       registry codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying language extensions. A code set may be specified using either a name, or
       a constant that is automatically exported by this module.

       For example, the two are equivalent:

	  $lext = code2langext('acm','alpha');
	  $lext = code2langext('acm',LOCALE_LANGEXT_ALPHA);

       The codesets currently supported are:

       alpha
	   This is the set of three-letter (lowercase) codes from the IANA language registry, such as 'acm' for Mesopotamian Arabic.

	   This is the default code set.

ROUTINES

       code2langext ( CODE [,CODESET] )
       langext2code ( NAME [,CODESET] )
       langext_code2code ( CODE ,CODESET ,CODESET2 )
       all_langext_codes ( [CODESET] )
       all_langext_names ( [CODESET] )
       Locale::Codes::LangExt::rename_langext  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Codes::LangExt::add_langext  ( CODE ,NAME [,CODESET] )
       Locale::Codes::LangExt::delete_langext  ( CODE [,CODESET] )
       Locale::Codes::LangExt::add_langext_alias  ( NAME ,NEW_NAME )
       Locale::Codes::LangExt::delete_langext_alias  ( NAME )
       Locale::Codes::LangExt::rename_langext_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangExt::add_langext_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangExt::delete_langext_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes::API man page.

SEE ALSO

       Locale::Codes
	   The Locale-Codes distribution.

       Locale::Codes::API
	   The list of functions supported by this module.

       http://www.iana.org/assignments/language-subtag-registry
	   The IANA language subtag registry.

AUTHOR

       See Locale::Codes for full author history.

       Currently maintained by Sullivan Beck (sbeck@cpan.org).

COPYRIGHT

	  Copyright (c) 2011-2013 Sullivan Beck

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

perl v5.16.3							    2013-02-27						 Locale::Codes::LangExt(3)
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