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Top Forums Shell Programming and Scripting Retrieve lines that match any occurence in a list of patterns Post 302693233 by Selftaught on Wednesday 29th of August 2012 02:28:51 AM
Old 08-29-2012
Question Retrieve lines that match any occurence in a list of patterns

I have two files. The first containing a header and six columns of data.
Example file 1:
Number SNP ID dbSNP RS ID Chromosome Result_Call Physical Position
787066 SNP_A-8575395 RS6650104 1 NOCALL 564477
786872 SNP_A-8575125 RS10458597 1 AA 564621
787077 SNP_A-8575389 RS8179414 1 NOCALL 565400
787080 SNP_A-8575376 RS9645428 1 NOCALL 566810
920528 SNP_A-8709646 RS12565286 1 AA 721290
710267 SNP_A-8497791 RS12082473 1 AA 740857
I wish to retrieve those lines where the third column (dbSNP RS ID) matches a number from file 2.

Example file 2:

rs10458597
rs12565286
rs12082473
rs3094315
rs2286139
rs11240776
In this example the first, second, and third lines from file 2 match the second, fifth, and sixth data rows in file 1.

The required output would be:

Number SNP ID dbSNP RS ID Chromosome Result_Call Physical Position
786872 SNP_A-8575125 RS10458597 1 AA 564621
920528 SNP_A-8709646 RS12565286 1 AA 721290
710267 SNP_A-8497791 RS12082473 1 AA 740857


I have found this code:
Code:
awk 'NR==FNR{a[$0]=1;next} {n=0;for(i in a){if($0~i){n=1}}} n' file1 file2


But the output contains all lines from file 1. My knowledge of awk is insufficient to see where it is going wrong. The 'trial and error' approach in altering bits of the code have been unsuccesful. Smilie

Any suggestions are highly appreciated.
 

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mdbFontEncoding(5)						 The m17n Library						mdbFontEncoding(5)

NAME
mdbFontEncoding - Font Encoding DESCRIPTION
The m17n library loads information about the encoding of each font form the m17n database by the tags <font, encoding>. The data is loaded as a plist of this format. FONT-ENCODING ::= PER-FONT * PER-FONT ::= '(' FONT-SPEC ENCODING [ REPERTORY ] ')' FONT-SPEC ::= '(' [ FOUNDRY FAMILY [ WEIGHT [ STYLE [ STRETCH [ ADSTYLE ]]]]] REGISTRY ')' ENCODING ::= SYMBOL FONT-SPEC is to specify properties of a font. FOUNDRY to REGISTRY are symbols corresponding to Mfoundry to Mregistry property of a font. See m17nFont for the meaning of each property. For instance, this FONT-SPEC: (nil alice0 lao iso8859-1) should be applied to all fonts whose family name is 'alice0 lao', and registry is 'iso8859-1'. ENCODING is a symbol representing a charset. A font matching FONT-SPEC supports all characters of the charset, and a character code is mapped to the corresponding glyph code of the font by this charset. REPERTORY is a symbol representing a charset or 'nil'. Omitting it is the same as specifying ENCODING as REPERTORY. If it is not 'nil', the charset specifies the repertory of the font, i.e, which character it supports. Otherwise, whether a specific character is supported by the font or not is asked to each font driver. For so called Unicode fonts (registry is 'iso10646-1'), it is recommended to specify 'nil' as REPERTORY because such fonts usually supports only a subset of Unicode characters. COPYRIGHT
Copyright (C) 2001 Information-technology Promotion Agency (IPA) Copyright (C) 2001-2011 National Institute of Advanced Industrial Science and Technology (AIST) Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License <http://www.gnu.org/licenses/fdl.html>. Version 1.6.2 12 Jan 2011 mdbFontEncoding(5)
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