Sponsored Content
Top Forums Shell Programming and Scripting Sed delete blank lines upto first pattern match Post 302597897 by agama on Sunday 12th of February 2012 09:29:33 PM
Old 02-12-2012
Have a go with this:
Code:
sed '/pattern/,$ b; /^$/d;'

This looks for the first occurrence of 'pattern' and from there skips the delete portion of the script, so only blank lines before the pattern are deleted.
It assumes your 'blank lines' are empty lines (no whitespace). If you truly have whitespace, then you can replace the delete with something like you've been using.
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

How to delete lines do NOT match a pattern

On Unix, it is easy to get those lines that match a pattern, by grep pattern file or those lines that do not, by grep -v pattern file but I am editing a file on Windows with Ultraedit. Ultraedit support regular expression based search and replace. I can delete all the lines that match a... (1 Reply)
Discussion started by: JumboGeng
1 Replies

2. Shell Programming and Scripting

SED: match pattern & delete matched lines

Hi all, I have the following data in a file x.csv: > ,this is some text here > ,,,,,,,,,,,,,,,,2006/11/16,0.23 > ,,,,,,,,,,,,,,,,2006/12/16,0.88 < ,,,,,,,,,,,,,,,,this shouldnt be deleted I need to use SED to match anything with a > in the line and delete that line, can someone help... (7 Replies)
Discussion started by: not4google
7 Replies

3. 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

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. Shell Programming and Scripting

Sed to delete exactly match pattern and print them in other file

Hi there, I need help about using sed. Iam using sed to delete and print lines that match the port number as listed in sedfile. I am using -d and -p command for delete match port and print them respectively. However, the output is not synchonize where the total deleted lines is not similar with... (3 Replies)
Discussion started by: new_buddy
3 Replies

6. Shell Programming and Scripting

sed problem - delete all lines until a match on 2 lines

First of all, I know this can be more eassily done with perl or other scripting languages but, that's not the issue. I need this in sed. (or wander if it's possible ) I got a file (trace file to recreate the control file from oracle for the dba boys) which contains some lines another line... (11 Replies)
Discussion started by: plelie2
11 Replies

7. Shell Programming and Scripting

delete block of lines when pattern does not match

I have this input file that I need to remove lines which represents more than 30 days of processing. Input file: On 11/17/2009 at 12:30:00, Program started processing...argc=7 Total number of bytes in file being processed is 390 Message buffer of length=390 was allocated successfully... (1 Reply)
Discussion started by: udelalv
1 Replies

8. Shell Programming and Scripting

Delete lines based on pattern match

BASH in Solaris 10 I have a log file like below. Whenever the pattern ORA-39083 is encountered, I want to delete the line which has this pattern and 3 lines below it. $ cat someLogfile.txt ORA-39083: Object type OBJECT_GRANT failed to create with error: ORA-01917: user or role 'CMPA' does... (4 Replies)
Discussion started by: kraljic
4 Replies

9. Shell Programming and Scripting

sed one liner to Delete blank lines - Help required

Hi, cat test.txt BlankLine BlankLine BlankLine BlankLine ello hi helo BlankLine BlankLine heylo BlankLine BlankLine BlankLine done BlankLine BlankLine BlankLine (1 Reply)
Discussion started by: TomG
1 Replies

10. UNIX for Beginners Questions & Answers

sed script to delete the last word after a last pattern match

Hi Guys , I am having a file as stated below File 1 sa0 -- i_core/i_core_apb/i_afe0_controller/U261/A sa0 -- i_core/i_core_apb/i_afe0_controller/U265/Z sa1 -- i_core/i_core_apb/i_afe0_controller/U265/A sa1 -- i_core/i_core_apb/i_afe0_controller/U268/Z sa1 -- ... (7 Replies)
Discussion started by: kshitij
7 Replies
GIT-STRIPSPACE(1)						    Git Manual							 GIT-STRIPSPACE(1)

NAME
git-stripspace - Remove unnecessary whitespace SYNOPSIS
git stripspace [-s | --strip-comments] git stripspace [-c | --comment-lines] DESCRIPTION
Read text, such as commit messages, notes, tags and branch descriptions, from the standard input and clean it in the manner used by Git. With no arguments, this will: o remove trailing whitespace from all lines o collapse multiple consecutive empty lines into one empty line o remove empty lines from the beginning and end of the input o add a missing to the last line if necessary. In the case where the input consists entirely of whitespace characters, no output will be produced. NOTE: This is intended for cleaning metadata, prefer the --whitespace=fix mode of git-apply(1) for correcting whitespace of patches or files in the repository. OPTIONS
-s, --strip-comments Skip and remove all lines starting with comment character (default #). -c, --comment-lines Prepend comment character and blank to each line. Lines will automatically be terminated with a newline. On empty lines, only the comment character will be prepended. EXAMPLES
Given the following noisy input with $ indicating the end of a line: |A brief introduction $ | $ |$ |A new paragraph$ |# with a commented-out line $ |explaining lots of stuff.$ |$ |# An old paragraph, also commented-out. $ | $ |The end.$ | $ Use git stripspace with no arguments to obtain: |A brief introduction$ |$ |A new paragraph$ |# with a commented-out line$ |explaining lots of stuff.$ |$ |# An old paragraph, also commented-out.$ |$ |The end.$ Use git stripspace --strip-comments to obtain: |A brief introduction$ |$ |A new paragraph$ |explaining lots of stuff.$ |$ |The end.$ GIT
Part of the git(1) suite Git 2.17.1 10/05/2018 GIT-STRIPSPACE(1)
All times are GMT -4. The time now is 02:53 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy