Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Remove duplicates
Top Forums Shell Programming and Scripting Remove duplicates Post 302264167 by radoulov on Wednesday 3rd of December 2008 09:50:05 AM
Old 12-03-2008
Quote:
Originally Posted by forumthreads
Hello again,

Many thanks for your response. I tried the command with awk and nawk as below

awk 'NR == FNR {_[$1,$2] next }!(($1,$2) in _)' old new

but get an error message as

awk: syntax error near line1
awk: illegal statement near line1
nawk: syntax error at source line 1
context is
NR==FNR { _[$1,$2] >>> next <<< } ! (($1, $2) in _)
nawk: illegal statement at source line 1

Please can you tell me where i am going wrong
Yes,
in my post there is a newline before the next statement.
If you want to run it on one line, you should change the command:

Code:
awk 'NR == FNR { _[$1,$2]; next } !(($1,$2) in _)' old new

 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Script to remove duplicates

Hi I need a script that removes the duplicate records and write it to a new file for example I have a file named test.txt and it looks like abcd.23 abcd.24 abcd.25 qwer.25 qwer.26 qwer.98 I want to pick only $1 and compare with the next record and the output should be abcd.23... (6 Replies)
Discussion started by: antointoronto
6 Replies

2. Shell Programming and Scripting

bash - remove duplicates

I need to use a bash script to remove duplicate files from a download list, but I cannot use uniq because the urls are different. I need to go from this: http://***/fae78fe/file1.wmv http://***/39du7si/file1.wmv http://***/d8el2hd/file2.wmv http://***/h893js3/file2.wmv to this: ... (2 Replies)
Discussion started by: locoroco
2 Replies

3. UNIX for Dummies Questions & Answers

Remove duplicates from a file

Can u tell me how to remove duplicate records from a file? (11 Replies)
Discussion started by: saga20
11 Replies

4. Shell Programming and Scripting

Awk: Remove Duplicates

I have the following code for removing duplicate records based on fields in inputfile file & moves the duplicate records in duplicates file(1st Awk) & in 2nd awk i fetch the non duplicate entries in inputfile to tmp file and use move to update the original file. Requirement: Can both the awk... (4 Replies)
Discussion started by: siramitsharma
4 Replies

5. Shell Programming and Scripting

awk remove first duplicates

Hi All, I have searched many threads for possible close solution. But I was unable to get simlar scenario. I would like to print all duplicate based on 3rd column except the first occurance. Also would like to print if it is single entry(non-duplicate). i/P file 12 NIL ABD LON 11 NIL ABC... (6 Replies)
Discussion started by: sybadm
6 Replies

6. Shell Programming and Scripting

Help with merge and remove duplicates

Hi all, I need some help to remove duplicates from a file before merging. I have got 2 files: file1 has data in format 4300 23456 4301 2357 the 4 byte values on the right hand side is uniq, and are not repeated anywhere in the file file 2 has data in same format but is not in... (10 Replies)
Discussion started by: roy121
10 Replies

7. Shell Programming and Scripting

Remove duplicates

I have a file with the following format: fields seperated by "|" title1|something class|long...content1|keys title2|somhing class|log...content1|kes title1|sothing class|lon...content1|kes title3|shing cls|log...content1|ks I want to remove all duplicates with the same "title field"(the... (3 Replies)
Discussion started by: dtdt
3 Replies

8. Shell Programming and Scripting

Sort and Remove duplicates

Here is my task : I need to sort two input files and remove duplicates in the output files : Sort by 13 characters from 97 Ascending Sort by 1 characters from 96 Ascending If duplicates are found retain the first value in the file the input files are variable length, convert... (4 Replies)
Discussion started by: ysvsr1
4 Replies

9. Shell Programming and Scripting

Remove duplicates

Hi I have a below file structure. 200,1245,E1,1,E1,,7611068,KWH,30, ,,,,,,,, 200,1245,E1,1,E1,,7611070,KWH,30, ,,,,,,,, 300,20140223,0.001,0.001,0.001,0.001,0.001 300,20140224,0.001,0.001,0.001,0.001,0.001 300,20140225,0.001,0.001,0.001,0.001,0.001 300,20140226,0.001,0.001,0.001,0.001,0.001... (1 Reply)
Discussion started by: tejashavele
1 Replies

10. Shell Programming and Scripting

How to remove duplicates using for loop?

values=(1 2 3 5 4 2 3 1 6 8 3 5 ) #i need the output like this by removing the duplicates 1 2 3 5 4 6 8 #i dont need sorting in my program #plz explain me as simple using for loop #os-ubuntu ,shell=bash (5 Replies)
Discussion started by: Meeran Rizvi
5 Replies

LEARN ABOUT ULTRIX

ucblinks

ucblinks(1B)					     SunOS/BSD Compatibility Package Commands					      ucblinks(1B)

NAME

       ucblinks - adds /dev entries to give SunOS 4.x compatible names to SunOS 5.x devices

SYNOPSIS

       /usr/ucb/ucblinks [-e rulebase] [-r rootdir]

DESCRIPTION

       ucblinks  creates symbolic links under the /dev directory for devices whose SunOS 5.x names differ from their SunOS 4.x names. Where possi-
       ble, these symbolic links point to the device's SunOS 5.x name rather than to the actual /devices entry.

       ucblinks does not remove unneeded compatibility links; these must be removed by hand.

       ucblinks should be called each time the system is reconfiguration-booted, after any new SunOS 5.x links that are needed have been  created,
       since the reconfiguration may have resulted in more compatibility names being needed.

       In  releases prior to SunOS 5.4, ucblinks used a  nawk rule-base to construct the SunOS 4.x compatible names. ucblinks no longer uses  nawk
       for the default operation, although  nawk rule-bases can still be specifed with the -e option.  The  nawk rule-base equivalent to the SunOS
       5.4 default operation can be found in /usr/ucblib/ucblinks.awk.

OPTIONS

       -e rulebase     Specify rulebase as the file containing nawk(1) pattern-action statements.

       -r rootdir      Specify rootdir as the directory under which dev and devices will be found, rather than the standard root directory /.

FILES

       /usr/ucblib/ucblinks.awk        sample rule-base for compatibility links

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE	     |	    ATTRIBUTE VALUE	   |
       +-----------------------------+-----------------------------+
       |Availability		     |SUNWscpu			   |
       +-----------------------------+-----------------------------+

SEE ALSO

       devlinks(1M), disks(1M), ports(1M), tapes(1M), attributes(5)

SunOS 5.10							    13 Apr 1994 						      ucblinks(1B)
All times are GMT -4. The time now is 12:42 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy