Sponsored Content
Top Forums Shell Programming and Scripting AWK Command to duplicate lines in a file? Post 302577866 by jayan_jay on Wednesday 30th of November 2011 06:12:52 AM
Old 11-30-2011
Code:
$ sed p infile
$
$ awk '{print $0"\n"$0}' infile

This User Gave Thanks to jayan_jay For This Post:
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

awk/sed Command : Parse parameter file / send the lines to the ksh export command

Sorry for the duplicate thread this one is similar to the one in https://www.unix.com/shell-programming-scripting/88132-awk-sed-script-read-values-parameter-files.html#post302255121 Since there were no responses on the parent thread since it got resolved partially i thought to open the new... (4 Replies)
Discussion started by: rajan_san
4 Replies

2. Shell Programming and Scripting

Command/Script to remove duplicate lines from the file?

Hello, Can anyone tell Command/Script to remove duplicate lines from the file? (2 Replies)
Discussion started by: Rahulpict
2 Replies

3. UNIX for Dummies Questions & Answers

Which command can help me output lines with duplicate numbers?

i have a file, let's call it file. march 2008 january 2008 march 1920 march 2002 i want to output the first line, not the second as you can see the second line has different numbers. (8 Replies)
Discussion started by: hobiwhenuknowme
8 Replies

4. Shell Programming and Scripting

Command to remove duplicate lines with perl,sed,awk

Input: hello hello hello hello monkey donkey hello hello drink dance drink Output should be: hello hello monkey donkey drink dance (9 Replies)
Discussion started by: cola
9 Replies

5. Shell Programming and Scripting

Awk: How to merge duplicate lines and print in a single

The input file: >cat module1 200611051053 95 200523457498 35 200617890187 57 200726098123 66 200645676712 71 200744556590 68 >cat module2 200645676712 ... (10 Replies)
Discussion started by: winter9
10 Replies

6. Shell Programming and Scripting

remove duplicate lines using awk

Hi, I came to know that using awk '!x++' removes the duplicate lines. Can anyone please explain the above syntax. I want to understand how the above awk syntax removes the duplicates. Thanks in advance, sudvishw :confused: (7 Replies)
Discussion started by: sudvishw
7 Replies

7. UNIX for Advanced & Expert Users

In a huge file, Delete duplicate lines leaving unique lines

Hi All, I have a very huge file (4GB) which has duplicate lines. I want to delete duplicate lines leaving unique lines. Sort, uniq, awk '!x++' are not working as its running out of buffer space. I dont know if this works : I want to read each line of the File in a For Loop, and want to... (16 Replies)
Discussion started by: krishnix
16 Replies

8. Shell Programming and Scripting

Awk and duplicate lines - little complicated

So I've got problem which continues on my previous one (from few months ago: unix.com/shell-programming-scripting/171764-delete-duplicate-lines-twist.html ). Good, proven, working solutions for that old problem are those: awk '{cur=$0; gsub(/]/, "", cur); if (!a++) print}'and awk... (2 Replies)
Discussion started by: shadowww
2 Replies

9. Shell Programming and Scripting

Cant get awk 1liner to remove duplicate lines from Delimited file, get "event not found" error..help

Hi, I am on a Solaris8 machine If someone can help me with adjusting this awk 1 liner (turning it into a real awkscript) to get by this "event not found error" ...or Present Perl solution code that works for Perl5.8 in the csh shell ...that would be great. ****************** ... (3 Replies)
Discussion started by: andy b
3 Replies

10. Shell Programming and Scripting

How to put the command to remove duplicate lines in my awk script?

I create a CGI in bash/html. My awk script looks like : echo "<table>" for fn in /var/www/cgi-bin/LPAR_MAP/*; do echo "<td>" echo "<PRE>" awk -F',|;' -v test="$test" ' NR==1 { split(FILENAME ,a,""); } $0 ~ test { if(!header++){ ... (12 Replies)
Discussion started by: Tim2424
12 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 08:20 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy