Removing duplicates depending on file size


 
Thread Tools Search this Thread
Top Forums Shell Programming and Scripting Removing duplicates depending on file size
# 8  
Old 07-09-2013
@Error404, Please try below solution.

cd to the directory where you have the files and execute below command. You may redirect the output to a temporary file.


Code:
ls -l|sort -k9 | awk '{OFS="."}{print $5,$9}' | awk -F"." 'BEGIN{row=$0;T=$2;} {if ($2==T) {if($1>max){max=$1;row=$0;}} else {print row;row=$0;max=0}; T=$2} END{print row}'

The command first lists all the files under the directory and picks the filename ($9) and size ($5). You may adjust this if you are getting the filename and size in different positions.

The fiesize is output as first field and the filename follows. I have used "." as an output delimiter to easily fetch the file with maximum size.

I created below files in a directory called tempdir:
Code:
LAJ.g.gif-1.JPEG                    4
LAJ.g.gif-2.JPEG                   12
LKJFDA01.gf.gif-1.JPEG           0
LKJFDA01.gf.gif-2.JPEG           0
LKJFDA01.gif-3.JPEG               4
OLUSDN.gf.gif-1.JPEG             0


The output was as below.
Code:
12.LAJ.g.gif-2.JPEG
4.LKJFDA01.gif-3.JPEG
0.OLUSDN.gf.gif-1.JPEG

The first field in the output is the maximum size of the file starting with 2nd field (i.e., LAJ, etc) in bytes.
Login or Register to Ask a Question

Previous Thread | Next Thread

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Removing duplicates from new file

i hav two files like i want to remove/delete all the duplicate lines in file2 which are viz unix,unix2,unix3.I have tried previous post also,but in that complete line must be similar.In this case i have to verify first column only regardless what is the content in succeeding columns. (3 Replies)
Discussion started by: sagar_1986
3 Replies

2. Shell Programming and Scripting

Removing duplicates from new file

i hav two files like i want to remove/delete all the duplicate lines in file2 which are viz unix,unix2,unix3 (2 Replies)
Discussion started by: sagar_1986
2 Replies

3. UNIX for Dummies Questions & Answers

Grep from pattern file without removing duplicates?

I have been using grep to output whole lines using a pattern file with identifiers (fileA): fig|562.2322.peg.1 fig|562.2322.peg.3 fig|562.2322.peg.3 fig|562.2322.peg.3 fig|562.2322.peg.7 From fileB with corresponding identifiers in the second column: NODE_0 fig|562.2322.peg.1 peg ... (2 Replies)
Discussion started by: Mauve
2 Replies

4. UNIX for Dummies Questions & Answers

Removing duplicates from a file

Hi All, I am merging files coming from 2 different systems ,while doing that I am getting duplicates entries in the merged file I,01,000131,764,2,4.00 I,01,000131,765,2,4.00 I,01,000131,772,2,4.00 I,01,000131,773,2,4.00 I,01,000168,762,2,2.00 I,01,000168,763,2,2.00... (5 Replies)
Discussion started by: Sri3001
5 Replies

5. Shell Programming and Scripting

formatting a file and removing duplicates

Hi, I have a file that I want to change the format of. It is a large file in rows but I want it to be comma separated (comma then a space). The current file looks like this: HI, Joe, Bob, Jack, Jack After I would want to remove any duplicates so it would look like this: HI, Joe,... (2 Replies)
Discussion started by: kylle345
2 Replies

6. Shell Programming and Scripting

Removing Duplicates from file

Hi Experts, Please check the following new requirement. I got data like the following in a file. FILE_HEADER 01cbbfde7898410| 3477945| home| 1 01cbc275d2c122| 3478234| WORK| 1 01cbbe4362743da| 3496386| Rich Spare| 1 01cbc275d2c122| 3478234| WORK| 1 This is pipe separated file with... (3 Replies)
Discussion started by: tinufarid
3 Replies

7. Shell Programming and Scripting

Removing duplicates from log file?

I have a log file with posts looking like this: -- Messages can be delivered by different systems at different times. The id number is used to sort out duplicate messages. What I need is to strip the arrival time from each post, sort posts by id number, and reattach arrival time to respective... (2 Replies)
Discussion started by: Ilja
2 Replies

8. UNIX for Dummies Questions & Answers

removing duplicates of a pattern from a file

hey all, I need some help. I have a text file with names in it. My target is that if a particular pattern exists in that file more than once..then i want to rename all the occurences of that pattern by alternate patterns.. for e.g if i have PATTERN occuring 5 times then i want to... (3 Replies)
Discussion started by: ashisharora
3 Replies

9. Shell Programming and Scripting

Removing duplicates in a sorted file by field.

I have data like this: It's sorted by the 2nd field (TID). envoy,90000000000000634600010001,04/11/2008,23:19:27,RB00266,0015,DETAIL,ERROR, envoy,90000000000000634600010001,04/12/2008,04:23:45,RB00266,0015,DETAIL,ERROR,... (1 Reply)
Discussion started by: kinksville
1 Replies

10. UNIX for Dummies Questions & Answers

removing duplicates from a file

i have a file with some 1000 entries it will contain entries like 1000,ram 2000,pankaj 1001,rahim 1000,ram 2532,govind 2000,pankaj 3000,venkat 2532,govind what i want is i want to extract only the distinct rows from this file so my output should contain only 1000,ram... (2 Replies)
Discussion started by: trichyselva
2 Replies
Login or Register to Ask a Question