Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Finding most repeated entry in a column and giving the count
Top Forums Shell Programming and Scripting Finding most repeated entry in a column and giving the count Post 302677279 by summer_cherry on Wednesday 25th of July 2012 11:27:19 PM
Old 07-26-2012
perl OR awk
perl

Code:
open $fh,"<", "a";
while(<$fh>){
    chomp;
    my @tmp = split(",",$_);
    $hash{$tmp[1]}->{'CNT'}++;
    $hash{$tmp[1]}->{'CONTENT'}=$hash{$tmp[1]}->{'CONTENT'}."\n".$_;
}
close $fh;
my $key = (sort {$hash{$b}->{'CNT'} cmp $hash{$a}->{'CNT'}} keys %hash)[0];
print $key,"=",$hash{$key}->{'CNT'},"\n";
print $hash{$key}->{'CONTENT'};


awk:

Code:
awk -F"," '{
    cnt[$2]++
    content[$2]=sprintf("%s\n%s",content[$2],$0)
}
END{
    for(i in cnt){
        if(ind ==""){
            ind=i
            max=cnt[i]
        }
        else{
            if(cnt[i]>=max){
                ind=i
                max=cnt[i]
            }
        }
    }
    print ind"="cnt[ind]
    print content[ind]
}' a

 

10 More Discussions You Might Find Interesting

1. Solaris

Huge (repeated Entry) text files

Somebody HELP! I have a huge log file (TEXT) 76298035 bytes. It's a logfile of IMEIs and IMSIS that I get from my EIR node. Here is how the contents of the file look like: 000000, 1 33016382000913 652020100423994 1 33016382002353 652020100430743 1 33017035101003 652020100441736... (4 Replies)
Discussion started by: axl
4 Replies

2. Shell Programming and Scripting

finding duplicate files by size and finding pattern matching and its count

Hi, I have a challenging task,in which i have to find the duplicate files by its name and size,then i need to take anyone of the file.Then i need to open the file and find for more than one pattern and count of that pattern. Note:These are the samples of two files,but i can have more... (2 Replies)
Discussion started by: jerome Sukumar
2 Replies

3. Shell Programming and Scripting

Finding the most common entry in a column

Hi, I have a file with 3 columns in it that are comma separated and it has about 5000 lines. What I want to do is find the most common value in column 3 using awk or a shell script or whatever works! I'm totally stuck on how to do this. e.g. value1,value2,bob value1,value2,bob... (12 Replies)
Discussion started by: Donkey25
12 Replies

4. Programming

Count the number of repeated characters in a given string

i have a string "dfasdfasdfadf" i want to count the number of times each character is repeated.. For instance, d is repeated 4 times, f is repeated 4 times.. can u give a program in c (1 Reply)
Discussion started by: pgmfourms
1 Replies

5. Shell Programming and Scripting

Help in counting the no of repeated words with count in a file

Hi Pls help in solving my doubt.Iam having file like below file1.txt priya jenny jenny priya raj radhika priya bharti bharti Output required: I need a output like count of repeated words with name for ex: priya 3 jenny 2 (4 Replies)
Discussion started by: bha148
4 Replies

6. Shell Programming and Scripting

for each different entry in column 1 extract maximum values from column 2 in unix/awk

Hello, I have 2 columns (1st column has multiple entries but the corresponding values in the column 2 may be the same or different.) however I want to extract unique values for each entry in column 1 by assigning the max value from column 2 SDF4 -0.211654 SDF4 0.978068 ... (1 Reply)
Discussion started by: Diya123
1 Replies

7. Shell Programming and Scripting

remove brackets and put it in a column and remove repeated entry

Hi all, I want to remove the remove bracket sign ( ) and put in the separate column I also want to remove the repeated entry like in first row in below input (PA156) is repeated ESR1 (PA156) leflunomide (PA450192) (PA156) leflunomide (PA450192) CHST3 (PA26503) docetaxel... (2 Replies)
Discussion started by: manigrover
2 Replies

8. Shell Programming and Scripting

Resume and count repeated values

Gents, Please can you help me. Input file 1050 , 9 ,9888 1050 ,10 ,9888 1050 ,11 ,9888 1050 ,13 ,9888 1050 ,15 ,9888 1051 , 9 ,9889 1051 ,12 ,9889 1051 ,15 ,9889 1051 ,18 ,9889 1052 , 9 ... (7 Replies)
Discussion started by: jiam912
7 Replies

9. UNIX for Beginners Questions & Answers

Export lines that have first entry repeated 5 times or above

Dears i want to extract lines only that have first entry repeated 3 times or above , ex data : -bash-3.00$ cat INTCONT-IS.CSV M205-00-106_AMDRN:1-0-6-22,12-662-4833,intContact,2016-11-15 02:32:16,50 M205-00-106_AMDRN:1-0-23-17,12-616-0462,intContact,2016-11-15 02:32:23,50... (5 Replies)
Discussion started by: is2_egypt
5 Replies

10. UNIX for Beginners Questions & Answers

Awk/sed summation of one column based on some entry in first column

Hi All , I am having an input file as stated below Input file 6 ddk/djhdj/djhdj/Q 10 0.5 dhd/jdjd.djd.nd/QB 01 0.5 hdhd/jd/jd/jdj/Q 10 0.5 512 hd/hdh/gdh/Q 01 0.5 jdjd/jd/ud/j/QB 10 0.5 HD/jsj/djd/Q 01 0.5 71 hdh/jjd/dj/jd/Q 10 0.5 ... (5 Replies)
Discussion started by: kshitij
5 Replies

LEARN ABOUT DEBIAN

colrm

COLRM(1)						    BSD General Commands Manual 						  COLRM(1)

NAME

     colrm -- remove columns from a file

SYNOPSIS

     colrm [start [stop]]

DESCRIPTION

     The colrm utility removes selected columns from the lines of a file.  A column is defined as a single character in a line.  Input is read
     from the standard input.  Output is written to the standard output.

     If only the start column is specified, columns numbered less than the start column will be written.  If both start and stop columns are spec-
     ified, columns numbered less than the start column or greater than the stop column will be written.  Column numbering starts with one, not
     zero.

     Tab characters increment the column count to the next multiple of eight.  Backspace characters decrement the column count by one.

ENVIRONMENT

     The LANG, LC_ALL and LC_CTYPE environment variables affect the execution of colrm as described in environ(7).

EXIT STATUS

     The colrm utility exits 0 on success, and >0 if an error occurs.

SEE ALSO

     awk(1), column(1), cut(1), paste(1)

HISTORY

     The colrm command appeared in 3.0BSD.

BSD
								  August 4, 2004							       BSD
All times are GMT -4. The time now is 06:03 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy