Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Inserting n characters to beginning of line if match
Top Forums UNIX for Beginners Questions & Answers Inserting n characters to beginning of line if match Post 303007725 by jvoot on Monday 20th of November 2017 05:35:25 PM
Old 11-20-2017
Thank you so much for this Don. In reviewing your code, I left things a bit ambiguous in my original post. I meant to say either 125 spaces or *125* dashes ("-"). I very much like the elegance of:

Code:
awk '/^@/{$0 = "-" $0}1' file

Is there a way that awk can be told to do 125 of the leading "-"? Or is the only solution to substitute "-" for "/s" in:

Code:
awk '{printf("%*s\n", 125 * (substr($0, 1, 1) == "@") + length, $0)}' file

Thus:
Code:
awk '{printf("%*-n", 125 * (substr($0, 1, 1) == "@") + length, $0)}' file

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Inserting new line after match of a fixed string

Hi, I have a file which contains many occurances of a string say "hellosunil". I want to insert a newline charcater after all the "hellosunil" strings in the file. trying to use sed, sed -e 's/hellosunil/\\nhellosunil/g' file1 sed help says u cannot substitute a regular expression... (6 Replies)
Discussion started by: sunil_neha
6 Replies

2. Shell Programming and Scripting

inserting characters before each line...

Hi , the fog is fulling my brain after holidays , somebody can help me ? I have a file in input like that : toto tata tutu and trying with awk to insert the compete file string as : /dir1/dir2/toto /dir1/dir2/tata /dir1/dir2/tutu i used to write : awk 'BEGIN {FS="\\"} {print... (4 Replies)
Discussion started by: Nicol
4 Replies

3. UNIX for Dummies Questions & Answers

Inserting control characters at the end of each line

How to add control characters at the end of each line in a file? Can anyone help me with this? Thanks, Shobana (2 Replies)
Discussion started by: Shobana_s
2 Replies

4. UNIX for Dummies Questions & Answers

Compare 2 lists using a full and/or partial match at beginning of line?

hello all, I wonder if anybody might be able to help with this. I have file 1 and file2. Both files may contain thousands of lines that have variable contents. file1 234GH 5234BTW 89er 678tfg 234 234YT tfg456 wert 78gt gh23444 (7 Replies)
Discussion started by: Garrred
7 Replies

5. Shell Programming and Scripting

search pattern and replace x-y characters in nth line after every match

Hi, I am looking for any script which can do the following. have to read a pattern from fileA and copy it to fileB. fileA: ... ... Header ... ... ..p1 ... ... fileB: .... .... Header (3 Replies)
Discussion started by: anilvk
3 Replies

6. UNIX for Dummies Questions & Answers

How to specify beginning-of-line/end-of-line characters inside a regex range

How can I specify special meaning characters like ^ or $ inside a regex range. e.g Suppose I want to search for a string that either starts with '|' character or begins with start-of-line character. I tried the following but it does not work: sed 's/\(\)/<do something here>/g' file1 ... (3 Replies)
Discussion started by: jawsnnn
3 Replies

7. Shell Programming and Scripting

Removing one or more blank characters from beginning of a line

Hi, I was trying to remove the blank from beginning of a line. when I try: sed 's/^ +//' filename it does not work but when I try sed 's/^ *//' filename it works But I think the first command should have also replaced any line with one or more blanks. Kindly help me in understanding... (5 Replies)
Discussion started by: babom
5 Replies

8. UNIX for Dummies Questions & Answers

How to match on phrase at beginning of line and specific columns?

Here is my file: 700 7912345678910 61234567891234567891 700 8012345678910 61234567891234567891 I want to pull all lines that begin with '700' only if columns 11-12 are '79'. My code so far only pulls the '79', not the whole line: grep ^700 file1 | cut -c 11,12 |... (7 Replies)
Discussion started by: Scottie1954
7 Replies

9. Shell Programming and Scripting

[Solved] Inserting a line beginning with regex

I have been trying to insert a line after a regex but I can't do it. Here is the code I am using: cat saved_doc SET type = type1 SET type = STORE = y /vol/san_e1 /vol/san_5 /vol/san_e9 /vol/san_e11 /vol/san_e12 /vol/san_e13 /vol/san_e14 /vol/san_e16 /vol/san_e17 /vol/san_e18... (4 Replies)
Discussion started by: newbie2010
4 Replies

10. UNIX for Beginners Questions & Answers

Removing characters from beginning of multiple files

Hi, I have been searching how to do this but I can't seem to find how to do it. Hopefully someone can help. I have multiplr files, 100's example 12345-zxys.213423.zyz.txt. I want to be able to take all these files and remove the first '12345-' from each of the files. '12345-' these characters... (5 Replies)
Discussion started by: israr75
5 Replies

LEARN ABOUT OSX

locale::codes::langext

Locale::Codes::LangExt(3pm)				 Perl Programmers Reference Guide			       Locale::Codes::LangExt(3pm)

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) 2011-2012 Sullivan Beck

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

perl v5.16.2							    2012-10-11					       Locale::Codes::LangExt(3pm)
All times are GMT -4. The time now is 09:32 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy