Sponsored Content
Top Forums Shell Programming and Scripting Command to remove duplicate lines with perl,sed,awk Post 302463165 by bartus11 on Saturday 16th of October 2010 03:57:51 AM
Old 10-16-2010
Code:
perl -ne 'print unless $a{$_}++' file

These 2 Users Gave Thanks to bartus11 For This Post:
 

10 More Discussions You Might Find Interesting

1. 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

2. Shell Programming and Scripting

Sed or Awk to remove specific lines

I have searched the forum for this - forgive me if I missed a previous post. I have the following file: blah blah blah blah blah blah blah blah blah blah blah blah blah blah blah alter table "informix".esc_acct add constraint (foreign key (fi_id) references "informix".fi ... (5 Replies)
Discussion started by: Shoeless_Mike
5 Replies

3. Shell Programming and Scripting

How to remove lines before and after with awk / sed ?

Hi guys, I need to remove the pattern (ID=180), one line before and four lines after. Thanks. (5 Replies)
Discussion started by: ashimada
5 Replies

4. Shell Programming and Scripting

perl/shell need help to remove duplicate lines from files

Dear All, I have multiple files having number of records, consist of more than 10 columns some column values are duplicate and i want to remove these duplicate values from these files. Duplicate values may come in different files.... all files laying in single directory.. Need help to... (3 Replies)
Discussion started by: arvindng
3 Replies

5. 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

6. Shell Programming and Scripting

[uniq + awk?] How to remove duplicate blocks of lines in files?

Hello again, I am wanting to remove all duplicate blocks of XML code in a file. This is an example: input: <string-array name="threeItems"> <item>item1</item> <item>item2</item> <item>item3</item> </string-array> <string-array name="twoItems"> <item>item1</item> <item>item2</item>... (19 Replies)
Discussion started by: raidzero
19 Replies

7. Shell Programming and Scripting

AWK Command to duplicate lines in a file?

Hi, I have a file with date in it like: UserString1 UserString2 UserString3 UserString4 UserString5 I need two entries for each line so it reads like UserString1 UserString1 UserString2 UserString2 etc. Can someone help me with the awk command please? Thanks (4 Replies)
Discussion started by: Grueben
4 Replies

8. Shell Programming and Scripting

Sed/awk/perl command to replace pattern in multiple lines

Hi I know sed and awk has options to give range of line numbers, but I need to replace pattern in specific lines Something like sed -e '1s,14s,26s/pattern/new pattern/' file name Can somebody help me in this.... I am fine with see/awk/perl Thank you in advance (9 Replies)
Discussion started by: dani777
9 Replies

9. Shell Programming and Scripting

Using sed, awk or perl to remove substring of all lines except the first

Greetings All, I would like to find all occurences of a pattern and delete a substring from the all matching lines EXCEPT the first. For example: 1234::group:user1,user2,user3,blah1,blah2,blah3 2222::othergroup:user9,user8 4444::othergroup2:user3,blah,blah,user1 1234::group3:user5,user1 ... (11 Replies)
Discussion started by: jacksolm
11 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
GRI_MERGE(1)						      General Commands Manual						      GRI_MERGE(1)

NAME
gri_merge - merge multiple Gri output files into a single PostScript file. USAGE (style 1): gri_merge [OPTIONS] CxR a.ps b.ps ... > merged_file.ps Merges the files onto one page, in 'C' columns and 'R' rows. The CxR files are given in the order of words on a page. The page is pre- sumed to be 8.5x11in in size, as are all the input files, and the input files are sized to fit, and kept in natural scale. USAGE (style 2): gri_merge [OPTIONS] xcm ycm enlarge a.ps [b.ps ...] > merged_file.ps Where `enlarge' is a scale factor applied after offsetting `xcm' to the right and `ycm' upward. EXAMPLE (style 2): The following gri_merge 2 12 .5 a.ps 12 12 .5 b.ps 2 2 .5 c.ps 12 2 .5 d.ps > all.ps produces 4 panels from gri plots done using margins and sizes as specified in the following lines in a gri commandfile set x margin 2 set x size 15 set y margin 2 set y size 15 The OPTIONS, available if your 'perl' has 'getopts' library, are: -u graylevel -- set graylevel for underlay beneath panels, by default 0.75. Values range from 0 (black) to 1 (white), although a value of precisely 1 means do NOT draw underlay. -b graylevel -- Set value for background under individual panels, again 0 for black to 1 for white, with 1 meaning no drawing. -h -- Print this help message and quit. SEE ALSO
gri(1), gri_unpage(1) gri_merge 2009 GRI_MERGE(1)
All times are GMT -4. The time now is 03:51 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy