Sponsored Content
Top Forums Shell Programming and Scripting Can't remove blank lines from a file Post 302399286 by murugaperumal on Saturday 27th of February 2010 02:11:39 AM
Old 02-27-2010
Bug Remove Blank Lines

Dear Friend,

You can use the following code, to delete the blank lines from a file

The file contains the following content
welcome1

welcome2

welcome3

Code:
 
sed -i -e '/^$/D'  file

After execute the above code, the file content is
welcome1
welcome2
welcome3

Here -i is used to affect the file
 

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. UNIX for Dummies Questions & Answers

remove blank lines in *.srt file :)

Hi all, I use translate web to get subtitle file in my langues . But in output file have bad blank lines . I need scrip (i use debian ) to remove this blank lines . szintax of my bad *.srt file : ------ number blank1 number:number ---> number:number blank2 text1 . textn blankS... (10 Replies)
Discussion started by: hungbp
10 Replies

3. 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

4. UNIX for Dummies Questions & Answers

Remove blank lines and comments from text file

Hi, I am using BASH. How can I remove any lines in a text file that are either blank or begin with a # (ie. comments)? Thanks in advance. Mike (3 Replies)
Discussion started by: msb65
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

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

8. 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

9. Shell Programming and Scripting

How to remove blank lines in a file and save the file with same name?

I have a text file which has blank lines. I want them to be removed before upload it to DB using SQL *Loader. Below is the command line, i use to remove blank lines. sed '/^ *$/d' /loc/test.txt If i use the below command to replace the file after removing the blank lines, it replace the... (6 Replies)
Discussion started by: vel4ever
6 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
ANACRONTAB(5)						       Anacron Users' Manual						     ANACRONTAB(5)

NAME
/etc/anacrontab - configuration file for anacron DESCRIPTION
The file /etc/anacrontab describes the jobs controlled by anacron(8). Its lines can be of three kinds: job-description lines, environment assignments, or empty lines. Job-description lines are of one of these two forms: period delay job-identifier command @period_name delay job-identify command The period is specified in days, the delay in minutes. The job-identifier can contain any non-blank character, except slashes. It is used to identify the job in Anacron messages, and as the name for the job's timestamp file. The command can be any shell command. The fields can be separated by blank spaces or tabs. The period_name can only be set to monthly at the present time. This will ensure jobs are only run once a month, no matter the number of days in this month, or the previous month. Environment assignment lines are of the form: VAR = VALUE Spaces around VAR are removed. No spaces around VALUE are allowed (unless you want them to be part of the value). The assignment takes effect from the next line to the end of the file, or to the next assignment of the same variable. Empty lines are either blank lines, line containing white-space only, or lines with white-space followed by a '#' followed by an arbitrary comment. You can continue a line onto the next line by ending it with a ''. SEE ALSO
anacron(8) The Anacron README file. AUTHOR
Itai Tzur <itzur@actcom.co.il> Currently maintained by Pascal Hakim <pasc@(debian.org|redellipse.net)>. Pascal Hakim 2004-07-11 ANACRONTAB(5)
All times are GMT -4. The time now is 10:28 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy