Sponsored Content
Top Forums Shell Programming and Scripting Select distinct rows in a file by last column Post 302777639 by jim mcnamara on Friday 8th of March 2013 08:10:28 AM
Old 03-08-2013
Code:
awk -F: '!arr[$(NF)]++'  oldfile > newfile

This User Gave Thanks to jim mcnamara For This Post:
 

10 More Discussions You Might Find Interesting

1. UNIX for Dummies Questions & Answers

select distinct row from a file

Hi, buddies out there. I have a text file ( only one column ) which I created using vi editor. The file contains duplicate rows and I would like to select distinct rows, how to go on it using unix command: file content = apple apple orange watermelon apple orange Can it be done... (7 Replies)
Discussion started by: merry susana
7 Replies

2. UNIX for Dummies Questions & Answers

Select Distinct on multiple fields

How do I create a script that provides a count of distinct values of a particular field in a file utilizing commonly available UNIX commands (sh or awk)? Field1|Field2|Field3|Field4 AAA|BBB|CCC|DDD 111|222|333|777 AAA|EEE|ZZZ|EEE 111|555|333|444 AAA|EEE|CCC|DDD 111|222|555|444 For... (2 Replies)
Discussion started by: Refresher
2 Replies

3. Shell Programming and Scripting

awk to select rows based on condition on column

I have got a file like this 003ABC00281020091005000100042.810001 ... (8 Replies)
Discussion started by: Maruti
8 Replies

4. Shell Programming and Scripting

Select distinct values from a flat file

Hi , I have a similar problem. Please can anyone help me with a shell script or a perl. I have a flat file like this fruit country apple germany apple india banana pakistan banana saudi mango india I want to get a output like fruit country apple ... (7 Replies)
Discussion started by: smalya
7 Replies

5. UNIX for Dummies Questions & Answers

how to get distinct counts in a column of a file

If i have a file sample.txt with more than 10 columns and 11th column as following data. would it be possible to get the distinct counts of values in single shot,Thank you. Y Y N N N P P o Expected Result: Value count Y 2 N 3 P 2 (2 Replies)
Discussion started by: Ariean
2 Replies

6. Shell Programming and Scripting

Select rows where the 3rd column value is over xx

Hi All, I've got a text file which is Postcode,Postcode, Travel_time and I want to select all of the rows where the 3rd column value is over 255. Can someone show me the magic on how to do this? Originally it did contain 4 columns but i've managed to strip out the first 3 using: cat textfile |... (3 Replies)
Discussion started by: gman
3 Replies

7. UNIX for Dummies Questions & Answers

merging rows into new file based on rows and first column

I have 2 files, file01= 7 columns, row unknown (but few) file02= 7 columns, row unknown (but many) now I want to create an output with the first field that is shared in both of them and then subtract the results from the rest of the fields and print there e.g. file 01 James|0|50|25|10|50|30... (1 Reply)
Discussion started by: A-V
1 Replies

8. Shell Programming and Scripting

How to find DISTINCT rows and combine in one row?

Hi , i need to display only one of duplicated values and merged them in one record only when tag started with 3100.2.128.8 3100.2.97.1=192.168.0.12 3100.2.128.8=418/66/03e9/0044801 3100.2.128.8=418/66/03ea/0044601 3100.2.128.8=418/66/03e9/0044801 3100.2.128.8=418/66/03ea/0044601... (5 Replies)
Discussion started by: OTNA
5 Replies

9. Shell Programming and Scripting

Script to select the rows from the feed file based on the input value provided

Hi Folks, I have the below feed file named abc1.txt in which you can see there is a title and below is the respective values in the rows and it is completely pipe delimited file ,. ... (3 Replies)
Discussion started by: punpun66
3 Replies

10. UNIX for Dummies Questions & Answers

Select distinct sequences from fasta file and list

Hi How can I extract sequences from a fasta file with respect a certain criteria? The beginning of my file (containing in total more than 1000 sequences) looks like this: >H8V34IS02I59VP SDACNDLTIALLQIAREVRVCNPTFSFRWHPQVKDEVMRECFDCIRQGLG YPSMRNDPILIANCMNWHGHPLEEARQWVHQACMSPCPSTKHGFQPFRMA... (6 Replies)
Discussion started by: Marion MPI
6 Replies
LOG(3)							     cao-vlsi reference manual							    LOG(3)

NAME
log - logical representations for boolean functions and utilities. ORIGIN
This software belongs to the ALLIANCE CAD SYSTEM developed by the ASIM team at LIP6 laboratory of Universite Pierre et Marie CURIE, in Paris, France. Web : http://asim.lip6.fr/recherche/alliance/ E-mail : alliance-users@asim.lip6.fr DESCRIPTION
log is a set of structures and functions that permits to manipulate several representations of boolean functions. Several programs and libraries of the cao-vlsi cad tools rest on the log package. Two different kind of functions are available for: Prefixed representation for boolean functions Ordered binary decision diagrams representation EXAMPLE
Let's suppose that actual mbk version is 'nnn'. In order to use log, libMutnnn.a library must be called. makefile: HEADER = -I/labo/include LIB = -L/labo/lib -lMutnnn -ltshmmm -lablmmm -lbddmmm Each library can be called separatly. The "logmmm.h" header file must be inserted in the files that use the functions or the structures defined in a library. SEE ALSO
mbk(1), beh(1), AUTHOR
L. BURGUN salle 30 T. 55-65 Universite P&M Curie - 4 pl. Jussieu - FRANCE BUG REPORT
This tool is under development at the ASIM department of the LIP6 laboratory. We need your feedback to improve documentation and tools. ASIM
/LIP6 October 1, 1997 LOG(3)
All times are GMT -4. The time now is 06:36 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy