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Full Discussion: Line duplication with awk?!
Top Forums UNIX for Beginners Questions & Answers Line duplication with awk?! Post 303009239 by Glorp on Monday 11th of December 2017 09:54:19 AM
Old 12-11-2017
Line duplication with awk?!

So while this seemed totally trivial it turned out to be much more difficult than I had thought.

I have a file with 3 rows, and I "just" want to add each field n number of times. E.g.
Code:
> cat file.txt
0.5
-0.1
0.6

for n=3 into:
Code:
cat newfile.txt
0.5 0.5 0.5
-0.1 -0.1 -0.1
0.6 0.6 0.6

I thought this would be straightforward with awk.
If I didn't need it to be flexible, this works fine:

Code:
awk '{print $0 $0 $0}'

My best attempt is probably:

Code:
> awk -v n=3 '{ORS=" "}{while (count++<n) print} file.txt > newfile.txt
> cat newfile.txt
0.5 0.5 0.5

this skips line 2 and 3 though Smilie
Anyone got the sneaky solution?

Last edited by Scrutinizer; 12-11-2017 at 10:56 AM.. Reason: code tags
 

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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)
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