Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: awk :quick question removing empty line.
Top Forums Shell Programming and Scripting awk :quick question removing empty line. Post 302805769 by MadeInGermany on Friday 10th of May 2013 10:29:19 PM
Old 05-10-2013
Code:
grep '^[^#]' file

Code:
awk '/^[^#]/ {print}' file

removes empty lines, but leaves lines with a blank character.
Last edited by MadeInGermany; 05-10-2013 at 11:41 PM..
This User Gave Thanks to MadeInGermany For This Post:
rveri
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

perl question - removing line from input file

In perl I want to do remove the top line of my input file then process the next line. I want to do something like head -1 inputfile > temp grep -v temp inputfile > newinputfile cp newinputfile inputfle is this possible in perl? (3 Replies)
Discussion started by: reggiej
3 Replies

2. Shell Programming and Scripting

Help with AWK -- quick question

Ok. I'm just starting to use AWK and I have a question. Here's what I'm trying to do: uname -n returns the following on my box: ftsdt-svsi20.si.sandbox.com I want to pipe this to an AWK statement and make it only print: svsi20 I tried: uname -n | awk '{ FS = "." ; print $1 }' ... (5 Replies)
Discussion started by: Probos
5 Replies

3. Shell Programming and Scripting

Sed question (Removing a line of text)

I am working with bash on HP-UX server at school. As practice for scripting, I am trying to make a pretend server admin script that adds a user to the system, deletes a user from the system, and lists all users of the pretend system. I have accomplished this with a select loop. Adding users, and... (2 Replies)
Discussion started by: masterscout1977
2 Replies

4. Shell Programming and Scripting

awk - if field is empty, move line to new file

I have a script with this statement: /usr/xpg4/bin/awk -F"" 'NR==FNR{s=$2;next}{printf "%s\"%s\"\n", $0, s}' LOOKUP.TXT finallistnew.txt >test.txt I want to include logic or an additional step that says if there is no data in field 3, move the whole line out of test.txt into an additional... (9 Replies)
Discussion started by: scriptr2be
9 Replies

5. Shell Programming and Scripting

awk print last line returns empty string

hello I have a file with lines of info separated with "|" I want to amend the second field of the last line, using AWK my problem is with geting awk to return the last line this is what I am using awk 'END{ print $0 }' myFile but I get an empty result I tried the... (13 Replies)
Discussion started by: TasosARISFC
13 Replies

6. Shell Programming and Scripting

awk script creates empty line

I have the following awk script to which I pass the file > 10 0 0 10 0 0 > 12.997 0 5.71132 12.9098 0.0687626 5.48855 12.7506 0.174324 5.13225 12.5913 0.262662 4.80643 12.4316 0.335652 4.50283 12.2717 0.394598 4.21542 12.1113 0.440399 3.93957 11.9506 0.473646 3.67148 11.7894... (2 Replies)
Discussion started by: kristinu
2 Replies

7. Shell Programming and Scripting

Quick sed/awk question

Hi fellow linux-ers, I have a quick question for you. I have the following text, which I would like to modify: 10 121E(121) 16 Jan 34S 132E 24 Feb 42 176E(176) 18 Sep 21S 164E 25 May 15 171W(-171) 09 Jul How can I do the following 2 modifications using sed and/or awk? 1. in 1st column,... (1 Reply)
Discussion started by: lucshi09
1 Replies

8. Shell Programming and Scripting

Quick awk question

gawk 'BEGIN{count=0} /^Jan 5 04:33/,0 && /fail/ && /09x83377/ { count++ } END { print count }' /var/log/syslog what is wrong with this code? i want to search the strings "fail" and "09x83377" from all entries. im grabbing all entries in the log starting from Jan 5 04:33 to the end of the... (3 Replies)
Discussion started by: SkySmart
3 Replies

9. UNIX for Dummies Questions & Answers

Using awk to remove duplicate line if field is empty

Hi all, I've got a file that has 12 fields. I've merged 2 files and there will be some duplicates in the following: FILE: 1. ABC, 12345, TEST1, BILLING, GV, 20/10/2012, C, 8, 100, AA, TT, 100 2. ABC, 12345, TEST1, BILLING, GV, 20/10/2012, C, 8, 100, AA, TT, (EMPTY) 3. CDC, 54321, TEST3,... (4 Replies)
Discussion started by: tugar
4 Replies

10. Shell Programming and Scripting

awk to identify empty fields in line

I am trying to use awk to identify and print out records in fields that are empty along with which line they are in. I hope the awk below is close, it runs but nothing results. Thank you :). awk awk -F'\t' 'FNR==NR ~ /^*$/ { print "NR is empty" }' file file 123 GOOD ID 45... (3 Replies)
Discussion started by: cmccabe
3 Replies

LEARN ABOUT MOJAVE

locale::codes::langvar

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

NAME

       Locale::Codes::LangVar - standard codes for language variation identification

SYNOPSIS

	  use Locale::Codes::LangVar;

	  $lvar = code2langvar('acm');		       # $lvar gets 'Mesopotamian Arabic'
	  $code = langvar2code('Mesopotamian Arabic'); # $code gets 'acm'

	  @codes   = all_langvar_codes();
	  @names   = all_langvar_names();

DESCRIPTION

       The "Locale::Codes::LangVar" module provides access to standard codes used for identifying language variations, 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 variations. 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:

	  $lvar = code2langvar('en','alpha-2');
	  $lvar = code2langvar('en',LOCALE_CODE_ALPHA_2);

       The codesets currently supported are:

       alpha
	   This is the set of alphanumeric codes from the IANA language registry, such as 'arevela' for Eastern Armenian.

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

	   This is the default code set.

ROUTINES

       code2langvar ( CODE [,CODESET] )
       langvar2code ( NAME [,CODESET] )
       langvar_code2code ( CODE ,CODESET ,CODESET2 )
       all_langvar_codes ( [CODESET] )
       all_langvar_names ( [CODESET] )
       Locale::Codes::LangVar::rename_langvar  ( CODE ,NEW_NAME [,CODESET] )
       Locale::Codes::LangVar::add_langvar  ( CODE ,NAME [,CODESET] )
       Locale::Codes::LangVar::delete_langvar  ( CODE [,CODESET] )
       Locale::Codes::LangVar::add_langvar_alias  ( NAME ,NEW_NAME )
       Locale::Codes::LangVar::delete_langvar_alias  ( NAME )
       Locale::Codes::LangVar::rename_langvar_code  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangVar::add_langvar_code_alias  ( CODE ,NEW_CODE [,CODESET] )
       Locale::Codes::LangVar::delete_langvar_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 v5.18.2							    2014-01-06					       Locale::Codes::LangVar(3pm)
All times are GMT -4. The time now is 04:34 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy