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Full Discussion: Split file into multiple files
Top Forums Shell Programming and Scripting Split file into multiple files Post 302447611 by jdhahbi on Monday 23rd of August 2010 08:21:49 PM
Old 08-23-2010
Split file into multiple files
Hi

I have a file that has multiple sequences; the sequence name is the line starting with '>'. It looks like below:
infile.txt:
Code:
>HE_ER
tttggtgccttgactcggattgggggacctcccttgggagatcaatcccctgtcctcctgctctttgctc
cgtgaaaaggatccacctatgacctctagtcctcagacccaccagcccaaggaacatctcaccaatttca
>M7B_Ho_sap
tgagaactgcagaactctcggcacagaacaactccatccaaacccctgcactaagagacttgaccaaact
aactagtgtccggctttgtttatctttgaca
>LT_H_ss
gtgagacaaagtaacaaatgtaagaagccatgtctgctcatttctgcttgccaacataatttcacaaagc
ccctgactctgtgatgacatgcagctctcnagaaagatgctttgaagacaaarcaggatrgagcacacag
ccccccayrtctcttgcctgagtcactayattccttaaaagataaatgaccctagtccttgccttttcct
>L_5_Et
ttaaaaacaaagcgggagacttccgcttccgggaagatggagtagacgtacttttccctattcctcccgc
taagtacaactaaaaaccctggacattatatataaaacaaacataagaagactctgaaaggtggagagaa

I need to extract the sequnces in individual files; the sequence name will be the file name. The output files will be like:

HE_ER.fa:
Code:
>HE_ER
tttggtgccttgactcggattgggggacctcccttgggagatcaatcccctgtcctcctgctctttgctc
cgtgaaaaggatccacctatgacctctagtcctcagacccaccagcccaaggaacatctcaccaatttca

M7B_Ho_sap.fa:
Code:
>M7B_Ho_sap
tgagaactgcagaactctcggcacagaacaactccatccaaacccctgcactaagagacttgaccaaact
aactagtgtccggctttgtttatctttgaca

LT_H_ss.fa:

Code:
>LT_H_ss
gtgagacaaagtaacaaatgtaagaagccatgtctgctcatttctgcttgccaacataatttcacaaagc
ccctgactctgtgatgacatgcagctctcnagaaagatgctttgaagacaaarcaggatrgagcacacag
ccccccayrtctcttgcctgagtcactayattccttaaaagataaatgaccctagtccttgccttttcct

L_5_Et.fa:
Code:
>L_5_Et
ttaaaaacaaagcgggagacttccgcttccgggaagatggagtagacgtacttttccctattcctcccgc
taagtacaactaaaaaccctggacattatatataaaacaaacataagaagactctgaaaggtggagagaa

I searched for some examples and so far I tried:

Code:
awk -v a=">" '{print $0 >> ($1a".fa")}' infile.txt

but it is not working for me. Please help

Joseph
 

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LEARN ABOUT DEBIAN

locale::script

Locale::Script(3perl)					 Perl Programmers Reference Guide				     Locale::Script(3perl)

NAME

       Locale::Script - standard codes for script identification

SYNOPSIS

	  use Locale::Script;

	  $script  = code2script('phnx');		      # 'Phoenician'
	  $code    = script2code('Phoenician'); 	      # 'Phnx'
	  $code    = script2code('Phoenician',
				 LOCALE_CODE_NUMERIC);	      # 115

	  @codes   = all_script_codes();
	  @scripts = all_script_names();

DESCRIPTION

       The "Locale::Script" module provides access to standards codes used for identifying scripts, such as those defined in ISO 15924.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 15924
       four-letter codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying scripts. The ones currently supported are:

       alpha
	   This is a set of four-letter (capitalized) codes from ISO 15924 such as 'Phnx' for Phoenician.

	   This code set is identified with the symbol "LOCALE_SCRIPT_ALPHA".

	   The Zxxx, Zyyy, and Zzzz codes are not used.

	   This is the default code set.

       numeric
	   This is a set of three-digit numeric codes from ISO 15924 such as 115 for Phoenician.

	   This code set is identified with the symbol "LOCALE_SCRIPT_NUMERIC".

ROUTINES

       code2script ( CODE [,CODESET] )
       script2code ( NAME [,CODESET] )
       script_code2code ( CODE ,CODESET ,CODESET2 )
       all_script_codes ( [CODESET] )
       all_script_names ( [CODESET] )
       Locale::Script::rename_script  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Script::add_script  ( CODE ,NAME [,CODESET] )
       Locale::Script::delete_script  ( CODE [,CODESET] )
       Locale::Script::add_script_alias  ( NAME ,NEW_NAME )
       Locale::Script::delete_script_alias  ( NAME )
       Locale::Script::rename_script_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Script::add_script_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Script::delete_script_code_alias  ( CODE [,CODESET] )
	   These routines are all documented in the Locale::Codes man page.

SEE ALSO

       Locale::Codes
       Locale::Constants
       http://www.unicode.org/iso15924/
	   Home page for ISO 15924.

AUTHOR

       See Locale::Codes for full author history.

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

COPYRIGHT

	  Copyright (c) 1997-2001 Canon Research Centre Europe (CRE).
	  Copyright (c) 2001-2010 Neil Bowers
	  Copyright (c) 2010-2011 Sullivan Beck

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

perl v5.14.2							    2011-09-26						     Locale::Script(3perl)
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