Sponsored Content
Top Forums Shell Programming and Scripting sed / awk to concatenate lines until blank line Post 302302044 by summer_cherry on Sunday 29th of March 2009 11:02:04 PM
Old 03-30-2009
perl:

Code:
undef $/;
open $fh,"<","a.pl";
my $str=<$fh>;
my @arr=split(/\n\n+/,$str);
map {my $t=$_; $t=~s/\n/ /g; print $t,"\n\n";} @arr;

sed:

Code:
sed -n '/^$/ !{
	1{
	h
	}
	1 !{
	H
	}
}
/^$/ {
 x
 /^$/ !{
 	s/\n//g
 	p
 	x
 	p
 	x
 	d
 }
}
${
	x
	/^$/ !{
	 s/\n//g
   p
   d
  }
}' a


Last edited by summer_cherry; 03-30-2009 at 12:29 AM..
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Need solution concatenate and display 2 lines as 1 with a condition for 2 line ?

I have 2 pattern of lines (SQL query and Time taken)in a log i need to capture all SQL queries with time taken >20 sec and need to display as one line. 2 lines from log: 2007-10-23 11:39:17,061 DEBUG - SQL Query : SELECT A.GROUP_CD , C.FN_CD FROM UP_GROUP A , PRD_GROUP_TO_FN B , PRD_FN... (1 Reply)
Discussion started by: vithala
1 Replies

2. Shell Programming and Scripting

concatenate and display 2 lines as 1 with a condition for 2 line ?

I have 2 pattern of lines (SQL query and Time taken)in a log i need to capture all SQL queries with time taken >20 sec and need to display as one line. 2 lines from log: 2007-10-23 11:39:17,061 DEBUG - SQL Query : SELECT A.GROUP_CD , C.FN_CD FROM UP_GROUP A , PRD_GROUP_TO_FN B , PRD_FN... (7 Replies)
Discussion started by: vithala
7 Replies

3. Shell Programming and Scripting

sed and blank lines

hello, i have tried to remove blank lines from a file using korn shell script file.. it doesn't seem to work! i tried sed '/^\s*$/d' infile > outfile but that didn't work i tried sed 's/ *$//;/^$/d' infile > outfile and that didn't work i tried sed '/^s./d' infile > outfile and that... (6 Replies)
Discussion started by: alrinno
6 Replies

4. UNIX for Advanced & Expert Users

need to concatenate two lines if the line doesnt end with quotes

Hi I am getting a source file where the columns are seperated by comma and double Quotes Eg1 : "AAA","BBB","CCCC" in the same source file i am also getting few lines where my last columns double quotes are ending in its next line or the next next line Eg2: "AAA","BBB","CCC CC"... (9 Replies)
Discussion started by: laxmi131
9 Replies

5. Shell Programming and Scripting

Logfile - extracting certain lines to concatenate into 1 line

I've got a log file from automatic diagnostic runs. The log file is appended to each time an automatic log is run. I'd like to just pull certain lines from each run in the log file, and concatenate them into 1 comma delimited line (for export into excel or an html table). Each diagnostic run... (3 Replies)
Discussion started by: BecTech
3 Replies

6. Shell Programming and Scripting

sed show lines text between 2 blank lines

I have a file like blah blah blah blah this is the text I need, which might be between 1-4 lines, but always has a blank line above and below it, and is at the end of the text file the code tags don't show the trailing blank line. I started by deleting the last blank line with: ... (2 Replies)
Discussion started by: unclecameron
2 Replies

7. Shell Programming and Scripting

sed or awk delete character in the lines before and after the matching line

Sample file: This is line one, this is another line, this is the PRIMARY INDEX line l ; This is another line The command should find the line with “PRIMARY INDEX” and remove the last character from the line preceding it (in this case , comma) and remove the first character from the line... (5 Replies)
Discussion started by: KC_Rules
5 Replies

8. Shell Programming and Scripting

awk or sed - Convert 2 lines to 1 line

Hi, Just trying to get to grips with sed and awk for some reporting for work and I need some assistance: I have a file that lists policy names on the first line and then on the second line whether the policy is active or not. Policy Name: Policy1 Active: yes Policy... (8 Replies)
Discussion started by: guinch
8 Replies

9. Shell Programming and Scripting

Awk, sed - concatenate lines starting with string

I have a file that looks like this: John Smith http://www.profile1.com http://www.profile2.com http://www.profile3.com Marc Olsen http://www.profile4.com http://www.profile5.com http://www.profile6.com http://www.profile7.com Lynne Doe http://www.profile8.com http://www.profile9.com... (3 Replies)
Discussion started by: locoroco
3 Replies

10. Shell Programming and Scripting

String search and print next all lines in one line until blank line

Dear all I want to search special string in file and then print next all line in one line until blank lines come. Help me plz for same. My input file and desire op file is as under. i/p file: A1/EXT "BSCABD1_21233G1" 757 130823 1157 RADIO X-CEIVER ADMINISTRATION BTS EXTERNAL FAULT ... (7 Replies)
Discussion started by: jaydeep_sadaria
7 Replies
restorepalette(1)						Svgalib User Manual						 restorepalette(1)

NAME
restorepalette - set the color palette for textmode. SYNOPSIS
restorepalette [filename] DESCRIPTION
restorepalette without arguments sets the standard VGA palette. This can be useful if it is somehow messed up. With a filename argument a custom palette can be loaded (feature added by Charles Blake <chuckb@alice.wonderland.caltech.edu>). This allow a user to set up a file that looks like this one (These color map definitions are the same as the default VGA ones. Alter to suite personal tastes). The first column contains the number of the color to set, then follow three integers in range 0 - 63 (lowest to highest intensity) for red, green, blue. 0 0 0 0 # black 1 0 0 42 # blue 2 0 42 0 # green 3 0 42 42 # cyan 4 42 0 0 # red 5 42 0 42 # magenta 6 42 21 0 # brown 7 42 42 42 # white 8 21 21 21 # bright black 9 21 21 63 # bright blue 10 21 63 21 # bright green 11 21 63 63 # bright cyan 12 63 21 21 # bright red 13 63 21 63 # bright magenta 14 63 63 21 # bright brown 15 63 63 63 # bright white The inline comments are the only kind of allowed, as I use a little fscanf(3) trick to get them. Blank lines are ok, but not pure comment lines. See the comments in my code, also. This allows people to set up custom palettes for use in virtual console text modes. I use it all the time. When combined with a color-syn- tax editor like jed-0.97+ or color-ls, etc., being able to choose your own text-mode palette is quite a bonus. I set mine up via restorepalette /etc/palette in my /etc/rc. If the program is given the correct permissions, then individual users can have restorepalette ~/.palette or some such thing in their shell startup files. Of course, it shouldn't be done when starting remote shells or when under X, so some kind of test that TERM is a virtual console is needed for that case. SEE ALSO
svgalib(7), vgagl(7), libvga.config(5), vga_setpalvec(3), dumpreg(1), convfont(1), fix132x43(1), restorefont(1), restoretextmode(1), runx(1), savetextmode(1), setmclk(1), textmode(1). AUTHOR
This manual page was edited by Michael Weller <eowmob@exp-math.uni-essen.de>. The exact source of the referenced utility as well as of the original documentation is unknown. It is very likely that both are at least to some extent are due to Harm Hanemaayer <H.Hanemaayer@inter.nl.net>. Occasionally this might be wrong. I hereby asked to be excused by the original author and will happily accept any additions or corrections to this first version of the svgalib manual. Svgalib (>;= 1.2.11) 2 Aug 1997 restorepalette(1)
All times are GMT -4. The time now is 07:40 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy