Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Delete first block of text with sed/awk
Top Forums Shell Programming and Scripting Delete first block of text with sed/awk Post 302591299 by teresaejunior on Thursday 19th of January 2012 06:38:53 AM
Old 01-19-2012
Quote:
Originally Posted by bartus11
Try:
Code:
awk '!a[$0]&&/^[0-9]/{a[$0]=1;print;getline;print;getline;print}' file

Hello, bartus, thanks!

I think I'm almost there: the file's got 3792 lines; with no duplicates (using sort -u | wc -l) it has 3378; and with your awk command it has 3384. So I think there are still two blocks remaining... Could you please explain a bit your code?

---------- Post updated at 09:38 AM ---------- Previous update was at 09:23 AM ----------

There are no errors in your code, thank you! There are duplicate lines, but no duplicate blocks!!!
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

using sed(?) to delete a block of text

hello people, i am trying to accomplish what i thought should be a simple task: find a token in a file and delete a number (let's say 25) of lines following the token. in sed, i can't figure out how to do a relative address (i.e. something like /token/25dd to delete 25 lines) and in gnu grep,... (3 Replies)
Discussion started by: toast
3 Replies

2. Shell Programming and Scripting

Delete lines containing text with sed

hello all I have bunch of files containing lines of text that surrounding by <# .......#> tags I like to delete this lines from the text files whiteout open the files , can it be done with sed ? or other unix tool (perl mybe )? (2 Replies)
Discussion started by: umen
2 Replies

3. 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

4. Shell Programming and Scripting

Filter duplicate block of text using SED

Hi, I would like to print a block of text between 2 regular expression using Sed, This can be achieved by using the command as shown below, however my problem is the same block of text is repeated twice. I would like to eliminate the duplicate block of text. For Example If my file... (5 Replies)
Discussion started by: dkumar91
5 Replies

5. Shell Programming and Scripting

Delete line with sed or awk (with specified condition)

Hello. I'm trying to delete the lines of a file does not contain the letter "T " (for example) at position 26. So far, I could only print the result: awk '{if (substr ($ 1,1,26)! ~ / T /) print}' file.txt How I can do to eliminate the lines that meet this condition? Help please. ... (4 Replies)
Discussion started by: </kida>
4 Replies

6. Shell Programming and Scripting

Delete text between square brackets and also delete those square brackets using sed or awk

Hi All, I have a text file which looks like this: computer programming systems engineering I want to get rid of these square brackets and also the text that is inside these brackets. So that my final text file looks like this: computer programming systems engineering I am using... (3 Replies)
Discussion started by: shoaibjameel123
3 Replies

7. Shell Programming and Scripting

Using tr, sed or awk to delete text from nth column only

Hi everyone, this is my first post here, I hope someone can help me. I have a file which I need to delete characters '_F3' from the end of the text in the first column. The problem is that the characters may also occur elsewhere in the file (i.e. second columns onwards). I tried sed (thinking I... (6 Replies)
Discussion started by: hlwright
6 Replies

8. Shell Programming and Scripting

using sed/awk to replace a block of text in a file?

My apologies if this has been answered in a previous post. I've been doing a lot of searching, but I haven't been able to find what I was looking for. Specifically, I am wondering if I can utilize sed and/or awk to locate two strings in a file, and replace everything between those two strings... (12 Replies)
Discussion started by: kiddsupreme
12 Replies

9. Shell Programming and Scripting

Block of text replacement using sed

Hi, I have a requirement in which i need to replace text as below - <stringProp name="Recipe">&lt;AddGroup Name=&quot;1001&quot; Path=&quot;ServiceAdministration/Controls/1001/ServiceSwitches&quot;&gt; &lt;Param Name=&quot;AttributeName&quot; Value=&quot;HeaderManipRspIngressRuleSet&quot; Type=&quot;String&quot; /&gt; &lt;Param Name=&quot;Value&quot;... (0 Replies)
Discussion started by: abhitanshu
0 Replies

10. Shell Programming and Scripting

How to delete a character using sed and or awk?

Hi, 1/ i have file test.txt 1 Jul 28 08:35:29 2014-07-28 Root::UserA 1 Jul 28 08:36:44 2014-07-28 Root::UserB i want to delete the seconds of the file, and the Root:: and the output will be: 1 Jul 28 08:35 2014-07-28 UserA 1 Jul 28 08:36 2014-07-28 UserB 2/i have another file test2.txt:... (8 Replies)
Discussion started by: fxsme
8 Replies

LEARN ABOUT OPENDARWIN

size

SIZE(1) 						      General Commands Manual							   SIZE(1)

NAME

       size - print the size of the sections in an object file

SYNOPSIS

       size [ option ... ] [ object ... ]

DESCRIPTION

       Size  (without  the -m option) prints the (decimal) number of bytes required by the __TEXT, __DATA and __OBJC segments.	All other segments
       are totaled and that size is listed in the `others' column.  The final two columns is the sum in decimal and hexadecimal.  If  no  file	is
       specified, a.out is used.

       The options to size(1) are:

       -      Treat the remaining arguments as name of object files not options to size(1).

       -m     Print the sizes of the Mach-O segments and sections as well as the total sizes of the sections in each segment and the total size of
	      the segments in the file.

       -l     When used with the -m option, also print the addresses and offsets of the sections and segments.

       -x     When used with the -m option, print the values in hexadecimal (with leading 0x's) rather than decimal.

       -arch arch_type
	      Specifies the architecture, arch_type, of the file for size(1) to operate on when the file is a fat file.  (See arch(3) for the cur-
	      rently  know  arch_types.)   The arch_type can be "all" to operate on all architectures in the file.  The default is to display only
	      the host architecture, if the file contains it; otherwise, all architectures in the file are shown.

SEE ALSO

       otool(1)

BUGS

       The size of common symbols can't be reflected in any of the numbers for relocatable object files.

Apple Computer, Inc.						   May 23, 2002 							   SIZE(1)
All times are GMT -4. The time now is 03:26 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy