Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Tried many options but unable to delete blank lines from text file
Top Forums Shell Programming and Scripting Tried many options but unable to delete blank lines from text file Post 303000957 by uuuunnnn on Monday 24th of July 2017 10:28:33 AM
Old 07-24-2017
I did that, but it completely deleted all lines

Code:
[oratest@uswclora15 ~]$ tr -d '\r' < temp.hash.txt > temp_Input_file  &&  mv temp_Input_file  temp.hash.txt
[oratest@uswclora15 ~]$ vi temp.hash.txt
[oratest@uswclora15 ~]$ sed '/^$/d' temp.hash.txt > temp.hash.txt
[oratest@uswclora15 ~]$ vi temp.hash.txt
[oratest@uswclora15 ~]$


Thanks,
Niladri
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

regex to delete multiple blank lines in a file?

can't figure out a way to delete multiple empty lines but keep single empty lines in a file, file is like this #cat file 1 2 3 4 5 6 - What I want is 1 2 (6 Replies)
Discussion started by: fedora
6 Replies

2. Shell Programming and Scripting

Delete blank lines at the end of file

I am attempting to delete blank lines in my file and I've used this command: sed '/^$/d' $file > $file.fixed all this seems to do is copy the file and not delete the blank lines located at the end of the file. Any assistance would be greatly appreciated. (3 Replies)
Discussion started by: TL56
3 Replies

3. UNIX for Dummies Questions & Answers

delete blank lines from a file

can anyone show me how to delete blank lines from a file. thanks in advance (2 Replies)
Discussion started by: sachin.gangadha
2 Replies

4. Shell Programming and Scripting

Delete a block of text delimited by blank lines when pattern is found

I have a file which contains blocks of text - each block is a multi-lines text delimited by blank lines eg. <blank line> several lines of text ... pattern found on this line several more lines of text ... <blank line> How do you delete the block of text (including the blank lines) when... (17 Replies)
Discussion started by: gleu
17 Replies

5. 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

6. Shell Programming and Scripting

Delete blank lines from a file

Hi, I want to use diff to compare two files in a Perl file. But one of the files has some blank lines at the end. So I want to delete the blank lines from the file firstly and then use diff to compare them. But I dont know how to delete the blank lines from the files. Meanwhile, the system is... (5 Replies)
Discussion started by: Damon_Qu
5 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

Delete the last empty/blank line of the text file

Hi All, I have a file.txt which seems like having three lines. wc -l file.txt 3 file.txt In fact, once it is open in text editor, this file has four lines where the last line is empty. how can i delete this last empty line of the file.txt? I tried the codes below so far but they... (6 Replies)
Discussion started by: senayasma
6 Replies

9. Shell Programming and Scripting

Delete blank lines in a file

Hi All, I have a file and I need to delete the lines that are blank and is starting with some characters below. Something like below: Regular Ascii File: Line1: AGODA1 BUSAN||SK Lord Beach 4/6/2012 4/7/2012 68060 Line2: AGODA2 BUSAN||SK Beach Hotel 4/6/2012 4/7/2012 610200 Line3: ... (4 Replies)
Discussion started by: rkumar28
4 Replies

10. UNIX for Advanced & Expert Users

Delete blank spaces and blank lines in a file

Hi Gurus, Somebody can say me how to delete blank spaces and blank lines in a file unix, please. Thank you for advanced. (10 Replies)
Discussion started by: systemoper
10 Replies

LEARN ABOUT REDHAT

dos2unix

dos2unix(1)						      General Commands Manual						       dos2unix(1)

NAME

       dos2unix - DOS/MAC to UNIX text file format converter

SYNOPSYS

       dos2unix [options] [-c convmode] [-o file ...] [-n infile outfile ...]

       Options:

       [-hkqV] [--help] [--keepdate] [--quiet] [--version]

DESCRIPTION

       This manual page documents dos2unix, the program that converts plain text files in DOS/MAC format to UNIX format.

OPTIONS

       The following options are available:

       -h --help
	      Print online help.

       -k --keepdate
	      Keep the date stamp of output file same as input file.

       -q --quiet
	      Quiet mode. Suppress all warning and messages.

       -V --version
	      Prints version information.

       -c --convmode convmode
	      Sets conversion mode. Simulates dos2unix under SunOS.

       -o --oldfile file ...
	      Old file mode. Convert the file and write output to it. The program default to run in this mode. Wildcard names may be used.

       -n --newfile infile outfile ...
	      New  file  mode.	Convert the infile and write output to outfile. File names must be given in pairs and wildcard names should NOT be
	      used or you WILL lost your files.

EXAMPLES

       Get input from stdin and write output to stdout.

	      dos2unix

       Convert and replace a.txt. Convert and replace b.txt.

	      dos2unix a.txt b.txt

	      dos2unix -o a.txt b.txt

       Convert and replace a.txt in ASCII conversion mode.  Convert and replace b.txt in ISO conversion mode.  Convert	c.txt  from  Mac  to  Unix
       ascii format.

	      dos2unix a.txt -c iso b.txt

	      dos2unix -c ascii a.txt -c iso b.txt

	      dos2unix -c mac a.txt b.txt

       Convert and replace a.txt while keeping original date stamp.

	      dos2unix -k a.txt

	      dos2unix -k -o a.txt

       Convert a.txt and write to e.txt.

	      dos2unix -n a.txt e.txt

       Convert a.txt and write to e.txt, keep date stamp of e.txt same as a.txt.

	      dos2unix -k -n a.txt e.txt

       Convert and replace a.txt. Convert b.txt and write to e.txt.

	      dos2unix a.txt -n b.txt e.txt

	      dos2unix -o a.txt -n b.txt e.txt

       Convert c.txt and write to e.txt. Convert and replace a.txt.  Convert and replace b.txt. Convert d.txt and write to f.txt.

	      dos2unix -n c.txt e.txt -o a.txt b.txt -n d.txt f.txt

DIAGNOSTICS

BUGS

       The program does not work properly under MSDOS in stdio processing mode.  If you know why is that so, please tell me.

AUTHORS

       Benjamin Lin - <blin@socs.uts.edu.au>

       Bernd Johannes Wuebben (mac2unix mode) <wuebben@kde.org>

MISCELLANY

       Tested environment:

	      Linux 1.2.0 with GNU C 2.5.8

	      SunOS 4.1.3 with GNU C 2.6.3

	      MS-DOS 6.20 with Borland C++ 4.02

       Suggestions and bug reports are welcome.

SEE ALSO

       unix2dos(1) mac2unix(1)

1995.03.31							   dos2unix v3.0						       dos2unix(1)
All times are GMT -4. The time now is 07:17 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy