Sponsored Content
Top Forums Shell Programming and Scripting Remove all blank lines in shell or awk. Post 302246143 by tushar_tus on Monday 13th of October 2008 01:58:17 AM
Old 10-13-2008
Remove all blank lines in shell or awk.

Hi there,


I want to trim space between lines in unix.
I have a file named abc.txt with 2,00,000 lines.But useful are only a few. Please tell me how to delete the blank lines.Smilie
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Remove blank lines

¿How can i remove blank lines between all lines in a long text file? Example WrongFile.txt : Line 1 Line 2 Line 3 CorrectFile.txt : Line 1 Line 2 Line 3 Thanks in advance :confused: (4 Replies)
Discussion started by: osymad
4 Replies

2. Shell Programming and Scripting

Shell script: Remove blank lines

Hi gurus, I have this file with blank lines in it. How do i remove them in shell? I tried these commands but not working: sed '/^ *$/d' or sed '/^$/d' Anybody has a better idea pls? Also there are lines which starts with a single space, how do we remove the space in those lines?... (3 Replies)
Discussion started by: gholdbhurg
3 Replies

3. Shell Programming and Scripting

Awk to remove Blank lines in pipedelimited

Awk to remove Blank lines in pipedelimited Help me correct this. nawk -F"|" '{a=$0; gsub(FS, "",a); if(length(a)) print}' file1 nawk -F"|" '{gsub(FS, "",$0);if(length($0)) print}' file1 (4 Replies)
Discussion started by: pinnacle
4 Replies

4. Shell Programming and Scripting

remove blank lines

I have joined 2 files. Join command worked fine. but the result showing extra blank lines. I tried to remove blank spaces by using awk (-- -42 RS= ORS="\n\n" file.txt) and sed (sed '/^ *$/d' file.txt)commands but didn't remove any Any suggestions plz:D 123 tab ....... ......tab .......234... (3 Replies)
Discussion started by: repinementer
3 Replies

5. Shell Programming and Scripting

Remove blank lines

I really hope someone can help me with this. I have several php files from a forum that I run, that now for some reason have blank lines after every line. Is there an easy way to make a script that does the following: * If there are consecutive blank lines, delete all of them except one. * If... (9 Replies)
Discussion started by: KidCactus
9 Replies

6. Shell Programming and Scripting

remove blank lines and merge lines in shell

Hi, I'm not a expert in shell programming, so i've come here to take help from u gurus. I'm trying to tailor a csv file that i got to make it work for the LOAD FROM command. I've a datatable csv of the below format - --in file format xx,xx,xx ,xx , , , , ,,xx, xxxx,, ,, xxx,... (11 Replies)
Discussion started by: dvah
11 Replies

7. Shell Programming and Scripting

Delete blank lines, if blank lines are more than one using shell

Hi, Consider a file named "testfile" The contents of file are as below first line added for test second line added for test third line added for test fourth line added for test fifth line added for test (5 Replies)
Discussion started by: anil8103
5 Replies

8. Shell Programming and Scripting

How to remove blank lines

Hi, I am facing a problem related to removing blank lines from a text document. Input Error 17-05-2011 11:01:15 VisualSVN Server 2.1 1001 The following information was included with the event: line3 line4 Error 17-05-2011 11:00:25 VisualSVN Server 2.1 ... (13 Replies)
Discussion started by: mayursingru
13 Replies

9. UNIX and Linux Applications

remove all blank lines

When I 'vi' my test file I see some blank lines. However once I do :set list to display hidden characters, I see the empty lines literally like this: ^I$ How do I remove them? I cannot find a regex to match them. (3 Replies)
Discussion started by: alexsuv
3 Replies

10. Shell Programming and Scripting

Remove Blank lines in VI

Hi, Which option is used to remove blank lines in VI (AIX). ? Regards, Siva (6 Replies)
Discussion started by: ksgnathan
6 Replies
IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). Free Software Foundation Nov 3 1999 IGAWK(1)
All times are GMT -4. The time now is 02:47 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy