Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Select only top "N" records based on column value
Top Forums Shell Programming and Scripting Select only top "N" records based on column value Post 302470705 by summer_cherry on Wednesday 10th of November 2010 10:19:07 PM
Old 11-10-2010
Code:
while(<DATA>){
  my @tmp = split('"',$_,5);
  if(not exists $hash{$tmp[3]}){
    $hash{$tmp[3]}=1;
    print;
  }
  else{
  if($hash{$tmp[3]}<2){
    $hash{$tmp[3]}++;
    print;
  }
  }
}
__DATA__

This User Gave Thanks to summer_cherry For This Post:
asandy1234
 

10 More Discussions You Might Find Interesting

1. UNIX for Advanced & Expert Users

Commands on Digital Unix equivalent to for "top" and "sar" on other Unix flavour

Hi, We have a DEC Alpha 4100 Server with OSF1 Digital Unix 4.0. Can any one tell me, if there are any commands on this Unix which are equivalent to "top" and "sar" on HP-UX or Sun Solaris ? I am particularly interested in knowing the CPU Load, what process is running on which CPU, etc. ... (1 Reply)
Discussion started by: sameerdes
1 Replies

2. UNIX for Dummies Questions & Answers

Select records based on search criteria on first column

Hi All, I need to select only those records having a non zero record in the first column of a comma delimited file. Suppose my input file is having data like: "0","01/08/2005 07:11:15",1,1,"Created",,"01/08/2005" "0","01/08/2005 07:12:40",1,1,"Created",,"01/08/2005"... (2 Replies)
Discussion started by: shashi_kiran_v
2 Replies

3. Debian

Debian: doubt in "top" %CPU and "sar" output

Hi All, I am running my application on a dual cpu debian linux 3.0 (2.4.19 kernel). For my application: <sar -U ALL> CPU %user %nice %system %idle ... 10:58:04 0 153.10 0.00 38.76 0.00 10:58:04 1 3.88 0.00 4.26 ... (0 Replies)
Discussion started by: jaduks
0 Replies

4. AIX

AIX 5.3 - Discrepancies between "top" and "vmstat"

Can someone explain the differences I'm seeing below in TOP and VMSTAT commands on my AIX 5.3 server? Thanks! CPUs: 4; load averages: 0.86, 0.97, 0.97 18:09:26 926 processes: 4 stopped, 922 running CPU states: 78.4% idle, 8.5% user, 12.6% kernel, 0.3% wait Memory: 23680M Total.... (1 Reply)
Discussion started by: troym72
1 Replies

5. Shell Programming and Scripting

"Join" or "Merge" more than 2 files into single output based on common key (column)

Hi All, I have working (Perl) code to combine 2 input files into a single output file using the join function that works to a point, but has the following limitations: 1. I am restrained to 2 input files only. 2. Only the "matched" fields are written out to the "matched" output file and... (1 Reply)
Discussion started by: Katabatic
1 Replies

6. Shell Programming and Scripting

AWK for multiple line records RS="^" FS="#"

I have to pull multiple line records with ^ as the record separator(RS)... # should be my field separator (FS)... Sample record is: ^-60#ORA-00060: deadlock detected while waiting for resource ORA-00001: unique constraint (SARADM.TCKNUM_PK) violated#PROC:AVAILABLE_FOR_GETNXTTIC#02/27/2012... (7 Replies)
Discussion started by: Vidhyaprakash
7 Replies

7. Shell Programming and Scripting

Substituting comma "," for dot "." in a specific column when comma"," is a delimiter

Hi, I'm dealing with an issue and losing a lot of hours figuring out how i would solve this. I have an input file which looks like this: ('BLABLA +200-GRS','Serviço ','TarifaçãoServiço','wap.bla.us.0000000121',2985,0,55,' de conversão em escada','Dia','Domingos') ('BLABLA +200-GRR','Serviço... (6 Replies)
Discussion started by: poliver
6 Replies

8. Shell Programming and Scripting

awk based script to print the "mode(statistics term)" for each column in a data file

Hi All, Thanks all for the continued support so far. Today, I need to find the most occurring string/number(also called mode in statistics terminology) for each column in a data file (.csv type). For one column of data(1.txt) like below Sample 1 2 2 3 4 1 1 1 2 I can find the mode... (6 Replies)
Discussion started by: ks_reddy
6 Replies

9. Shell Programming and Scripting

Choosing between repeated entries based on the "absolute values" of a column

Hello, I was looking for a way to select between the repeated entries (column1) based on the values of absolute values of column 3 (larger value). For example if the same gene id has FC value -2 and 1, I should get the output as -2. Kindly help. GeneID Description FC ... (2 Replies)
Discussion started by: Sanchari
2 Replies

10. UNIX for Beginners Questions & Answers

Extract delta records using with "comm" and "sort" commands combination

Hi All, I have 2 pipe delimited files viz., file_old and file_new. I'm trying to compare these 2 files, and extract all the different rows between them into a new_file. comm -3 < sort file_old < sort file_new > new_file I am getting the below error: -ksh: sort: cannot open But if I do... (7 Replies)
Discussion started by: njny
7 Replies

LEARN ABOUT PLAN9

dh_movefiles

DH_MOVEFILES(1) 						     Debhelper							   DH_MOVEFILES(1)

NAME

       dh_movefiles - move files out of debian/tmp into subpackages

SYNOPSIS

       dh_movefiles [debhelperoptions] [--sourcedir=dir] [-Xitem] [file...]

DESCRIPTION

       dh_movefiles is a debhelper program that is responsible for moving files out of debian/tmp or some other directory and into other package
       build directories. This may be useful if your package has a Makefile that installs everything into debian/tmp, and you need to break that
       up into subpackages.

       Note: dh_install is a much better program, and you are recommended to use it instead of dh_movefiles.

FILES

       debian/package.files
	   Lists the files to be moved into a package, separated by whitespace. The filenames listed should be relative to debian/tmp/. You can
	   also list directory names, and the whole directory will be moved.

OPTIONS

       --sourcedir=dir
	   Instead of moving files out of debian/tmp (the default), this option makes it move files out of some other directory. Since the entire
	   contents of the sourcedir is moved, specifying something like --sourcedir=/ is very unsafe, so to prevent mistakes, the sourcedir must
	   be a relative filename; it cannot begin with a `/'.

       -Xitem, --exclude=item
	   Exclude files that contain item anywhere in their filename from being installed.

       file ...
	   Lists files to move. The filenames listed should be relative to debian/tmp/. You can also list directory names, and the whole directory
	   will be moved. It is an error to list files here unless you use -p, -i, or -a to tell dh_movefiles which subpackage to put them in.

NOTES

       Note that files are always moved out of debian/tmp by default (even if you have instructed debhelper to use a compatibility level higher
       than one, which does not otherwise use debian/tmp for anything at all). The idea behind this is that the package that is being built can be
       told to install into debian/tmp, and then files can be moved by dh_movefiles from that directory. Any files or directories that remain are
       ignored, and get deleted by dh_clean later.

SEE ALSO

       debhelper(7)

       This program is a part of debhelper.

AUTHOR

       Joey Hess <joeyh@debian.org>

11.1.6ubuntu2							    2018-05-10							   DH_MOVEFILES(1)
All times are GMT -4. The time now is 05:09 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy