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Full Discussion: Shell script to extract data in a file
Top Forums UNIX for Beginners Questions & Answers Shell script to extract data in a file Post 302991822 by RudiC on Thursday 16th of February 2017 02:36:03 PM
Old 02-16-2017
I'd be very surprised if it really took 6h, except on a very busy host. For a 15MB file with 1101925 lines:
Code:
time sh ou.awk 
real    0m4.469s
user    0m4.400s
sys     0m0.040s

EDIT:
For a comparison with vgersh99's proposal in post#5:
Code:
time awk -f gil.awk DS2_export100217.ldif
real    0m1.713s
user    0m1.076s
sys     0m0.072s

And, last but not least, Corona688's proposal in post#9
Code:
time awk -f mline.awk DS2_export100217.ldif
real    0m0.833s
user    0m0.752s
sys     0m0.072s

Both use ($1 in ARRAY) which is WAY faster than my HDCM ~ "," $1 "," ; a good learning, isn't it?

EDIT2:
Applying our learning:
Code:
time ./ou.awk >output                    
real    0m0.678s
user    0m0.660s
sys     0m0.016s


BTW - these timings are far from being scientifically correct, reliable nor objective - other influences like file buffering etc. might heavily modify the results. They're for getting a feeling only...
Last edited by RudiC; 02-16-2017 at 04:05 PM..
These 2 Users Gave Thanks to RudiC For This Post:
gillesi vgersh99
 

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LEARN ABOUT MOJAVE

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) 2011-2013 Sullivan Beck

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

perl v5.18.2							    2013-11-04					       Locale::Codes::LangExt(3pm)
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