Sponsored Content
Top Forums UNIX for Dummies Questions & Answers how to use sed to get last 6 lines Post 302143227 by radoulov on Wednesday 31st of October 2007 07:52:59 AM
Old 10-31-2007
OK:
Code:
awk '{ x[FNR] = $0 }
/^INA 2007-09-05/ { 
	for ( i = FNR-6; i <= FNR; i++ ) 
	print x[i]
}' filename


Use nawk on /usr/xpg4/bin/awk on Solaris.

P.S. You can add delete x (for multiple occurrences)
or exit (for a single one) for efficiency Smilie
In that case you have to use xpg awk on Solaris.
 

10 More Discussions You Might Find Interesting

1. 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

2. 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

3. Shell Programming and Scripting

using sed to remove lines

Can somebody explain why my sed command is not working. I do the folloinwg: Generates a binary file to /tmp/x1.out /usr/lib/sa/sa2 -s 4:00 -e 8:00 -i 3600 -A -o /tmp/x1.out decodes the file (no problem so far) sar -f /tmp/x1.out When I do this it does not appear to delete the... (4 Replies)
Discussion started by: BeefStu
4 Replies

4. Shell Programming and Scripting

Merge two lines using sed

Hi, I am trying to merge two lines, first line starts with a particular pattern and second line ends with a particular pattern in a file. Something like: First line starts with say ABC Second line ends with say XYZ After a merge, the line should become ABC.......XYZ I tried... (14 Replies)
Discussion started by: Sunny Arora
14 Replies

5. 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

6. Shell Programming and Scripting

Sed/awk to delete single lines that aren't touching other lines

Hello, I'm trying to figure out how to use sed or awk to delete single lines in a file. By single, I mean lines that are not touching any other lines (just one line with white space above and below). Example: one two three four five six seven eight I want it to look like: (6 Replies)
Discussion started by: slimjbe
6 Replies

7. Shell Programming and Scripting

Summing over specific lines and replacing the lines with the sum using sed, awk

Hi friends, This is sed & awk type question. I have a text file which has numbers spread all over the file. I want to sum the series of numbers whenever i find it and produce an output file with the sum. For example ###start of input text file #### abc def ghi 1 2 3 4 kjld random... (3 Replies)
Discussion started by: kaaliakahn
3 Replies

8. Shell Programming and Scripting

sed print all lines between second and third identical lines

I am trying to extract a table of data (mysql query output) from a log file. I need to print everything below the header and not past the end of the table. I have spent many hours searching with little progress. I am matching the regexp +-\{99\} with no problem. I just can't figure out how to print... (5 Replies)
Discussion started by: godfreydanials
5 Replies

9. Shell Programming and Scripting

Use sed to print first n lines and last n lines of an output.

Use sed to print first n lines and last n lines of an output. For example: n=10 Can it be done? Thanks. (7 Replies)
Discussion started by: carloszhang
7 Replies

10. Shell Programming and Scripting

ksh sed - Extract specific lines with mulitple occurance of interesting lines

Data file example I look for primary and * to isolate the interesting slot number. slot=`sed '/^primary$/,/\*/!d' filename | tail -1 | sed s'/*//' | awk '{print $1" "$2}'` Now I want to get the Touch line for only the associate slot number, in this case, because the asterisk... (2 Replies)
Discussion started by: popeye
2 Replies
IGAWK(1)							 Utility Commands							  IGAWK(1)

NAME
igawk - gawk with include files SYNOPSIS
igawk [ all gawk options ] -f program-file [ -- ] file ... igawk [ all gawk options ] [ -- ] program-text file ... DESCRIPTION
Igawk is a simple shell script that adds the ability to have ``include files'' to gawk(1). AWK programs for igawk are the same as for gawk, except that, in addition, you may have lines like @include getopt.awk in your program to include the file getopt.awk from either the current directory or one of the other directories in the search path. OPTIONS
See gawk(1) for a full description of the AWK language and the options that gawk supports. EXAMPLES
cat << EOF > test.awk @include getopt.awk BEGIN { while (getopt(ARGC, ARGV, "am:q") != -1) ... } EOF igawk -f test.awk SEE ALSO
gawk(1) Effective AWK Programming, Edition 1.0, published by the Free Software Foundation, 1995. AUTHOR
Arnold Robbins (arnold@skeeve.com). Free Software Foundation Nov 3 1999 IGAWK(1)
All times are GMT -4. The time now is 11:09 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy