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Full Discussion: date format
Top Forums UNIX for Dummies Questions & Answers date format Post 302678759 by Don Cragun on Sunday 29th of July 2012 07:26:08 PM
Old 07-29-2012
Quote:
Originally Posted by Irishboy24
more easier way using bash.

Code:
$ cat formdate

#!/usr/bin/bash
var=26-JUL-2012
newvar=$(date --d=$var +'%Y%m%d')
echo $newvar

Code:
$ ./formdate
20120726

That is using a feature of the date utility on your system; not a feature of bash. On systems that don't have the --d option to date, the following ksh
script should work:
Code:
cat formdate

#!/bin/ksh
# input argument format MM-<Abbreviated_Month>-YYYY
# output format YYYYMMDD
typeset -A month
month=( [JAN]=01  [FEB]=02  [MAR]=03  [APR]=04  [MAY]=05  [JUN]=06
	 [JUL]=07  [AUG]=08  [SEP]=09  [OCT]=10  [NOV]=11  [DEC]=12 )
while [ $# -gt 0 ]
do
	abmon=${1%-*}
	abmon=${abmon#*-}
	printf "%s%s%s\n" "${1##*-}" "${month[$abmon]}" "${1%%-*}"
	shift
done

Code:
formdate 26-JUL-2012 01-JAN-2000 31-DEC-2013
20120726
20000101
20131231

 

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LEARN ABOUT OSX

locale::codes::langext

Locale::Codes::LangExt(3pm)				 Perl Programmers Reference Guide			       Locale::Codes::LangExt(3pm)

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) 2011-2012 Sullivan Beck

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

perl v5.16.2							    2012-10-11					       Locale::Codes::LangExt(3pm)
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