Login or Register to Ask a Question and Join Our Community


UNIX and Linux Applications

remove all blank lines

Login to Discuss or Reply to this Discussion in Our Community

 
Thread Tools Search this Thread
Special Forums UNIX and Linux Applications remove all blank lines
# 1  
Old 10-03-2011
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.
# 2  
Old 10-03-2011
did you try if it matches /\t+$/
# 3  
Old 10-03-2011
Ok, I figured it out. the ^I represents the tab. So this one worked for me:

sed '/\t$/d' file-with-empty-lines > no-empty-lines

---------- Post updated at 05:34 PM ---------- Previous update was at 05:32 PM ----------

daptal, yes that was exactly the case (i am glad I got to the right answer independently, but thanks for your quick response!).
# 4  
Old 10-12-2011
Code:
awk NF empty-lines-file >  no-empty-lines-file

Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

Remove blank lines using cat command

plz help me to figure it out how i remove empty or blank files using cat command. i will be very thankful if u send me this answer... thanks (3 Replies)
Discussion started by: mushfiks1
3 Replies

2. 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

3. 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

4. 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

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

Can't remove blank lines from a file

Hi Guys, I have been trying to remove blank lines from a file with no success. I tried using all the following options on the file: tr -s '\n' < abc.txt grep -v "^$" abc.txt sed '/^$/d' abc.txt sed '/./!d' abc.txt awk '/./' abc.txt The file is a text file. (11 Replies)
Discussion started by: npatwardhan
11 Replies

7. 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

8. UNIX for Advanced & Expert Users

How to Remove the unwanted Blank Lines

I have a file with the below data, i would like to remove the end blank lines with no data. I used the below commands but could not able to succeed, could you please shed some light. Commands Used: sed '/^$/d' input.txt > output.txt grep -v '^$' input.txt > output.txt input.txt file... (5 Replies)
Discussion started by: Ariean
5 Replies

9. 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

10. 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
Login or Register to Ask a Question