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Top Forums Shell Programming and Scripting How to remove empty field in a text file? Post 302931565 by huiyee1 on Tuesday 13th of January 2015 11:12:06 PM
Old 01-14-2015
How to remove empty field in a text file?

Hi all,

I want to remove empty field in a text file. I tried to used sed. But it failed.

Input:
Code:
LG10_PM_map_19_LEnd	1000560	G	AG	AG				
LG10_PM_map_19_LEnd	1005621	G		AG				
LG10_PM_map_19_LEnd	1011214	A	AG	AG				
LG10_PM_map_19_LEnd	1011673	T	CT	CT				
LG10_PM_map_19_LEnd	1088961	C						CT
LG10_PM_map_19_LEnd	1089024	G						AG
LG10_PM_map_19_LEnd	1108301	C						
LG10_PM_map_19_LEnd	11365128	G		AG	AG	AG	AG	AG
LG10_PM_map_19_LEnd	11365170	T		CT	CT	CT	CT	CT
LG10_PM_map_19_LEnd	11381744	A			AG	AG	AG	AG
LG10_PM_map_19_LEnd	11381772	T				CT	CT	CT
LG10_PM_map_19_LEnd	11385851	A			AG		AG	AG
LG10_PM_map_19_LEnd	11386265	A			AC		AC	AC
LG10_PM_map_19_LEnd	1138663	T						AT

Output
Code:
LG10_PM_map_19_LEnd	1000560	G	AG	AG				
LG10_PM_map_19_LEnd	1005621	G	AG				
LG10_PM_map_19_LEnd	1011214	A	AG	AG				
LG10_PM_map_19_LEnd	1011673	T	CT	CT				
LG10_PM_map_19_LEnd	1088961	C	CT
LG10_PM_map_19_LEnd	1089024	G	AG
LG10_PM_map_19_LEnd	1108301	C		
LG10_PM_map_19_LEnd	11365128	G	AG	AG	AG	AG	AG
LG10_PM_map_19_LEnd	11365170	T	CT	CT	CT	CT	CT
LG10_PM_map_19_LEnd	11381744	A	AG	AG	AG	AG
LG10_PM_map_19_LEnd	11381772	T	CT	CT	CT
LG10_PM_map_19_LEnd	11385851	A	AG	AG	AG
LG10_PM_map_19_LEnd	11386265	A	AC	AC	AC
LG10_PM_map_19_LEnd	1138663	T	AT

How can remove these blank fields?

Thanks in advance.
 

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

NAME
Locale::Codes::LangVar - standard codes for language variation identification SYNOPSIS
use Locale::Codes::LangVar; $lvar = code2langvar('acm'); # $lvar gets 'Mesopotamian Arabic' $code = langvar2code('Mesopotamian Arabic'); # $code gets 'acm' @codes = all_langvar_codes(); @names = all_langvar_names(); DESCRIPTION
The "Locale::Codes::LangVar" module provides access to standard codes used for identifying language variations, 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 variations. 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: $lvar = code2langvar('arevela','alpha'); $lvar = code2langvar('arevela',LOCALE_LANGVAR_ALPHA); The codesets currently supported are: alpha This is the set of alphanumeric codes from the IANA language registry, such as 'arevela' for Eastern Armenian. This code set is identified with the symbol "LOCALE_LANGVAR_ALPHA". This is the default code set. ROUTINES
code2langvar ( CODE [,CODESET] ) langvar2code ( NAME [,CODESET] ) langvar_code2code ( CODE ,CODESET ,CODESET2 ) all_langvar_codes ( [CODESET] ) all_langvar_names ( [CODESET] ) Locale::Codes::LangVar::rename_langvar ( CODE ,NEW_NAME [,CODESET] ) Locale::Codes::LangVar::add_langvar ( CODE ,NAME [,CODESET] ) Locale::Codes::LangVar::delete_langvar ( CODE [,CODESET] ) Locale::Codes::LangVar::add_langvar_alias ( NAME ,NEW_NAME ) Locale::Codes::LangVar::delete_langvar_alias ( NAME ) Locale::Codes::LangVar::rename_langvar_code ( CODE ,NEW_CODE [,CODESET] ) Locale::Codes::LangVar::add_langvar_code_alias ( CODE ,NEW_CODE [,CODESET] ) Locale::Codes::LangVar::delete_langvar_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 2013-04-12 Locale::Codes::LangVar(3)
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