Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: How to modify lines without certain patterns?
Top Forums UNIX for Dummies Questions & Answers How to modify lines without certain patterns? Post 302744153 by luoruicd on Friday 14th of December 2012 12:34:02 AM
Old 12-14-2012
Quote:
Originally Posted by bipinajith
Checking column 3 & replacing with " "
Code:
awk '$3 !~ /(^A$|^T$|^G$|^C$)/ { $3=" "; print $0 } $3 ~ /(^A$|^T$|^G$|^C$)/ { print $0; } ' infile

thanks for this! It works! One issue my file is very huge, it's about 11G. I have two columns I need to modify, while keep the rest the same. Ran this code twice to write in new files really takes time. Is there a way to speed it up? Or just modify the original file?

Another question is I am really new for unix, may I know what does print $0 mean?

thanks!
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to get lines in between Patterns?

Hi, I need to create a script that does the following: 1. Read the file for the occurrences of "EXECUTE" and "END" strings. There will be several occurrences of EXECUTE and END strings on the file. 2. The resulting lines in #1, needs to be searched for the word... (11 Replies)
Discussion started by: racbern
11 Replies

2. UNIX for Dummies Questions & Answers

How to use sed modify specific lines

Could anybody tell me how I can use sed to modify lines following specific lines? the file is as following: "TEST/SI1573.lab" 3670 8920 h# 8920 9530 hh 9530 10694 ih . "TEST/DR1/FAKS0/SI2203.lab" 9730 9580 h# 9580 9840 dh 9840 10652 ix 10652 11997 r ........ I want to modify the... (5 Replies)
Discussion started by: Jenny.palmy
5 Replies

3. Shell Programming and Scripting

Searching patterns in 1 file and deleting all lines with those patterns in 2nd file

Hi Gurus, I have a file say for ex. file1 which has 3500 lines in it which are different account numbers and another file (file2) which has 230000 lines in it. I want to read all the lines in file1 and delete all those lines from file2 which has that same pattern as in file1. I am not quite... (4 Replies)
Discussion started by: toms
4 Replies

4. Shell Programming and Scripting

about the modify lines

Hello, I am trying to convert lines from text file, I got lines in text files like that ALPHA.cab tomtom.cab vgame.cab converter.cabWhat i want to do is I want to conver these lines like that, cabwiz.exe ALPHA.cab extract "C:\1extract\ALPHA" cabwiz.exe tomtom.cab extract ... (5 Replies)
Discussion started by: davidkhan
5 Replies

5. Shell Programming and Scripting

How can I get the lines between two patterns?

hi, I have the following file hello world this is to say bye to everyone so bye I want to get the lines from hello to the first bye inclusive into another file? how can I do this (11 Replies)
Discussion started by: JamesByars
11 Replies

6. Programming

Need to modify contents of file with complex patterns.

hi, my fstab file content is like this along with some other lines: /dev/vg0/var1 /var1 ext3 defaults 0 2 /dev/vg0/flx1 /flx1 ext3 defaults 0 2 /dev/vg0/var /var ext3 defaults 0 1 /dev/vg0/flx /flx ext3 defaults 0 2 I want to remove lines with /dev/vg0/var and... (5 Replies)
Discussion started by: success
5 Replies

7. Shell Programming and Scripting

Perl - need script for modify lines

Hello, does somebody can make script for me, which replace: ąćę ąćę ąćę (input file) to ace;|;ąćę ace;|;ąćę ace;|;ąćę (output file) (3 Replies)
Discussion started by: Xadrian
3 Replies

8. Shell Programming and Scripting

How to print only lines in between patterns?

Hi, I want to print only lines (green-italic lines) in between first and last strings in column 9. there are different number of lines between each strings. 10 AUGUSTUS exon 4558 4669 . - . 10.g1 10 AUGUSTUS exon 8771 8889 . ... (6 Replies)
Discussion started by: jamo
6 Replies

9. UNIX for Beginners Questions & Answers

Delete multiple lines between blank lines containing two patterns

Hi all, I'm looking for a way (sed or awk) to delete multiple lines between blank lines containing two patterns ex: user: alpha parameter_1 = 15 parameter_2 = 1 parameter_3 = 0 user: alpha parameter_1 = 15 parameter_2 = 1 parameter_3 = 0 user: alpha parameter_1 = 16... (3 Replies)
Discussion started by: ce9888
3 Replies

10. UNIX for Beginners Questions & Answers

How to print lines from a files with specific start and end patterns and pick only the last lines?

Hi, I need to print lines which are matching with start pattern "SELECT" and END PATTERN ";" and only select the last "select" statement including the ";" . I have attached sample input file and the desired input should be as: INPUT FORMAT: SELECT ABCD, DEFGH, DFGHJ, JKLMN, AXCVB,... (5 Replies)
Discussion started by: nani2019
5 Replies

LEARN ABOUT CENTOS

locale::codes::langfam

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

NAME

       Locale::Codes::LangFam - standard codes for language extension identification

SYNOPSIS

	  use Locale::Codes::LangFam;

	  $lext = code2langfam('apa');		       # $lext gets 'Apache languages'
	  $code = langfam2code('Apache languages');    # $code gets 'apa'

	  @codes   = all_langfam_codes();
	  @names   = all_langfam_names();

DESCRIPTION

       The "Locale::Codes::LangFam" module provides access to standard codes used for identifying language families, such as those as defined in
       ISO 639-5.

       Most of the routines take an optional additional argument which specifies the code set to use. If not specified, the default ISO 639-5
       language family codes will be used.

SUPPORTED CODE SETS

       There are several different code sets you can use for identifying language families. 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 = code2langfam('apa','alpha');
	  $lext = code2langfam('apa',LOCALE_LANGFAM_ALPHA);

       The codesets currently supported are:

       alpha
	   This is the set of three-letter (lowercase) codes from ISO 639-5 such as 'apa' for Apache languages.

	   This is the default code set.

ROUTINES

       code2langfam ( CODE [,CODESET] )
       langfam2code ( NAME [,CODESET] )
       langfam_code2code ( CODE ,CODESET ,CODESET2 )
       all_langfam_codes ( [CODESET] )
       all_langfam_names ( [CODESET] )
       Locale::Codes::LangFam::rename_langfam  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Codes::LangFam::add_langfam  ( CODE ,NAME [,CODESET] )
       Locale::Codes::LangFam::delete_langfam  ( CODE [,CODESET] )
       Locale::Codes::LangFam::add_langfam_alias  ( NAME ,NEW_NAME )
       Locale::Codes::LangFam::delete_langfam_alias  ( NAME )
       Locale::Codes::LangFam::rename_langfam_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangFam::add_langfam_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangFam::delete_langfam_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.loc.gov/standards/iso639-5/id.php
	   ISO 639-5 .

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::LangFam(3)
All times are GMT -4. The time now is 07:59 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy