Help with awk for selecting lines in a file avoiding repetition
Hello,
I am using Awk in UBUNTU 12.04.
I have a file as following with 48,432,354 lines and 4 fields.
The file has this structure (There are repetitions of the first column in several lines)
What I want to have as an outcome is this:
That is to have a file only with the first lines of the first file. To mention, I have a file only with the list of names of the first file like this if that can be useful.
Thank you very much in advance.
Last edited by Franklin52; 11-26-2012 at 05:50 AM..
Reason: Please use code tags for data and code samples
Hello,
I need to select the 3 lines above as well as below a search string, including the search string.
I have been trying various combinations using sed command without any success.
Can anuone help please.
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Discussion started by: proc1269
3 Replies
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)