Sponsored Content
Top Forums Shell Programming and Scripting Delete blank lines, if blank lines are more than one using shell Post 302521065 by anil8103 on Tuesday 10th of May 2011 06:36:42 AM
Old 05-10-2011
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
Code:
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

I need the output as below
Code:
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

Pls help me to get the desired output.

To be simple : I want to delete blank lines,if blank lines are more than one.

Thanks in advance

Anil.G

Moderator's Comments:
Mod Comment Please use [code] and [/code] tags when posting code, data or logs etc. to preserve formatting and enhance readability, thanks.

Last edited by zaxxon; 05-10-2011 at 07:42 AM.. Reason: code tags
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

delete blank lines or lines with spaces only

hi there i'm trying to delete blank lines and or lines with spaces only from a series of files in an directory. to do so, i'm using this: for files in `ls /users/myname/pesop* 2>/dev/null` do grep -v ^$ $files > newfile mv newfile $files done now, this works great for blank lines but... (3 Replies)
Discussion started by: vascobrito
3 Replies

2. Shell Programming and Scripting

delete blank lines with sed

I have a text file with blank lines fullfilled with spaces and others only containing the "Enter" caracter, the \012. I would like to eliminate all them with the sed command. Is it possible? making: sed '/^$/d' <file should delete the blank lines but doesn't work for the lines that only... (2 Replies)
Discussion started by: tmxps
2 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. UNIX for Dummies Questions & Answers

delete traling blank lines only

Hi, I have blank line in the file, I just want to remove trailing blank lines. There are some blank lines between the lines, i don't want remove those. Just want to delete blank lines at the end. I used this command sed '/^$/d' infile > outfile, but it is not removing anything. I think... (1 Reply)
Discussion started by: visu
1 Replies

5. Shell Programming and Scripting

Why cant i delete blank lines?

I have a sed pipeline: myVar=$(cat $FILE | sed -n '/regex/,/regex/{/regex/d;p}' | sed -n '/regex/!p' | sed -e s/*:// | sed /regex/,+8d \ ) sed '/^$/d' sed '/./!d' And i've tried to add that in a different order rather then just on the end..Why isnt it deleting all the blank... (2 Replies)
Discussion started by: omgsomuchppl
2 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 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

8. 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

9. Shell Programming and Scripting

To check Blank Lines, Blank Records and Junk Characters in a File

Hi All Need Help I have a file with the below format (ABC.TXT) : ®¿¿ABCDHEJJSJJ|XCBJSKK01|M|7348974982790 HDFLJDKJSKJ|KJALKSD02|M|7378439274898 KJHSAJKHHJJ|LJDSAJKK03|F|9898982039999 (cont......) I need to write a script where it will check for : blank lines (between rows,before... (6 Replies)
Discussion started by: chatwithsaurav
6 Replies

10. UNIX for Beginners Questions & Answers

Delete multiple lines between blank lines containing two patterns

Hi all, I'm looking for a way (sed or awk) to delete multiple lines between blank lines containing two patterns ex: user: alpha parameter_1 = 15 parameter_2 = 1 parameter_3 = 0 user: alpha parameter_1 = 15 parameter_2 = 1 parameter_3 = 0 user: alpha parameter_1 = 16... (3 Replies)
Discussion started by: ce9888
3 Replies
TAP::Parser::Result::Test(3pm)				 Perl Programmers Reference Guide			    TAP::Parser::Result::Test(3pm)

NAME
TAP::Parser::Result::Test - Test result token. VERSION
Version 3.26 DESCRIPTION
This is a subclass of TAP::Parser::Result. A token of this class will be returned if a test line is encountered. 1..1 ok 1 - woo hooo! OVERRIDDEN METHODS
This class is the workhorse of the TAP::Parser system. Most TAP lines will be test lines and if "$result->is_test", then you have a bunch of methods at your disposal. Instance Methods "ok" my $ok = $result->ok; Returns the literal text of the "ok" or "not ok" status. "number" my $test_number = $result->number; Returns the number of the test, even if the original TAP output did not supply that number. "description" my $description = $result->description; Returns the description of the test, if any. This is the portion after the test number but before the directive. "directive" my $directive = $result->directive; Returns either "TODO" or "SKIP" if either directive was present for a test line. "explanation" my $explanation = $result->explanation; If a test had either a "TODO" or "SKIP" directive, this method will return the accompanying explanation, if present. not ok 17 - 'Pigs can fly' # TODO not enough acid For the above line, the explanation is not enough acid. "is_ok" if ( $result->is_ok ) { ... } Returns a boolean value indicating whether or not the test passed. Remember that for TODO tests, the test always passes. If the test is unplanned, this method will always return false. See "is_unplanned". "is_actual_ok" if ( $result->is_actual_ok ) { ... } Returns a boolean value indicating whether or not the test passed, regardless of its TODO status. "actual_passed" Deprecated. Please use "is_actual_ok" instead. "todo_passed" if ( $test->todo_passed ) { # test unexpectedly succeeded } If this is a TODO test and an 'ok' line, this method returns true. Otherwise, it will always return false (regardless of passing status on non-todo tests). This is used to track which tests unexpectedly succeeded. "todo_failed" # deprecated in favor of 'todo_passed'. This method was horribly misnamed. This was a badly misnamed method. It indicates which TODO tests unexpectedly succeeded. Will now issue a warning and call "todo_passed". "has_skip" if ( $result->has_skip ) { ... } Returns a boolean value indicating whether or not this test has a SKIP directive. "has_todo" if ( $result->has_todo ) { ... } Returns a boolean value indicating whether or not this test has a TODO directive. "as_string" print $result->as_string; This method prints the test as a string. It will probably be similar, but not necessarily identical, to the original test line. Directives are capitalized, some whitespace may be trimmed and a test number will be added if it was not present in the original line. If you need the original text of the test line, use the "raw" method. "is_unplanned" if ( $test->is_unplanned ) { ... } $test->is_unplanned(1); If a test number is greater than the number of planned tests, this method will return true. Unplanned tests will always return false for "is_ok", regardless of whether or not the test "has_todo". Note that if tests have a trailing plan, it is not possible to set this property for unplanned tests as we do not know it's unplanned until the plan is reached: print <<'END'; ok 1 ok 2 1..1 END perl v5.18.2 2014-01-06 TAP::Parser::Result::Test(3pm)
All times are GMT -4. The time now is 09:09 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy