Sponsored Content
Top Forums UNIX for Beginners Questions & Answers Print a row with the max number in a column Post 303044113 by MadeInGermany on Friday 14th of February 2020 04:17:37 AM
Old 02-14-2020
Regarding your initial attempt, it is quite close.
First, let me make a simplified version:
Code:
awk '! ($1 in A_Max) || $1 > A_Max[$1] { A_Max[$1]=$NF } END { for (a in A_Max) print A_Max[a],a }' file

Now, the final step is to store the lines in another array, along with the A_max[]
Code:
awk '! ($1 in A_Max) || $1 > A_Max[$1] { A_Max[$1]=$NF; L_Max[$1]=$0 } END { for (a in A_Max) print L_Max[a] }' file

The two arrays take some memory; the key field $1 is stored in both arrays.
It would be possible to only use a line array ...
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

How to print column based on row number

Hi, I want to print column value based on row number say multiple of 8. Input file: line 1 67 34 line 2 45 57 . . . . . . line 8 12 46 . . . . . . line 16 24 90 . . . . . . line 24 49 67 Output 46 90 67 (2 Replies)
Discussion started by: Surabhi_so_mh
2 Replies

2. Shell Programming and Scripting

extracting row with max column value using awk or unix

Hello, BC106081_abc_128240811_128241377 7.96301 BC106081_abc_128240811_128241377 39.322 BC106081_cde_128240811_128241377 1.98628 BC106081_def_128240811_128241377 -2.44492 BC106081_abc_128240811_128241377 69.5504 FLJ00075_xyz_14406_16765 -0.173417 ... (3 Replies)
Discussion started by: Diya123
3 Replies

3. Shell Programming and Scripting

print max number of 2 columns - awk

Is it possible to print max number of 2 columns - awk note: print max if the integer is positive and print min if the integer is negative input a 1 2 b 3 4 c 5 1 d -3 -5 d -5 -3 output a 2 b 4 c 5 d -5 d -5 (4 Replies)
Discussion started by: quincyjones
4 Replies

4. Shell Programming and Scripting

Print min and max value from two column

Dear All, I have data like this, input: 1254 10125 1254 10126 1254 10127 1254 10128 1254 10129 1255 10130 1255 10131 1255 10132 1255 10133 1256 10134 1256 10135 1256 10137... (3 Replies)
Discussion started by: aksin
3 Replies

5. UNIX for Dummies Questions & Answers

awk to print first row with forth column and last row with fifth column in each file

file with this content awk 'NR==1 {print $4} && NR==2 {print $5}' file The error is shown with syntax error; what can be done (4 Replies)
Discussion started by: cdfd123
4 Replies

6. Shell Programming and Scripting

Print every 5 4th column values as separate row with different first column

Hi, I have the following file, chr1 100 200 20 chr1 201 300 22 chr1 220 345 23 chr1 230 456 33.5 chr1 243 567 90 chr1 345 600 20 chr1 430 619 21.78 chr1 870 910 112.3 chr1 914 920 12 chr1 930 999 13 My output would be peak1 20 22 23 33.5 90 peak2 20 21.78 112.3 12 13 Here the... (3 Replies)
Discussion started by: jacobs.smith
3 Replies

7. Shell Programming and Scripting

Sum value in a row and print the max

I have the input file in attached. I want the output file : Date , Time , Max_Bearer 11/01/2013 , 23:00 , 1447.894167 11/02/2013 , 00:00 , 1429.266667 11/03/2013 , 00:00 , 712.3175 11/04/2013 , 22:00 , 650.9533333 11/05/2013 , 23:00 , 665.9558333 11/06/2013 , 23:00 , 659.8616667... (2 Replies)
Discussion started by: justbow
2 Replies

8. Shell Programming and Scripting

Get row number from file1 and print that row of file2

Hi. How can we print those rows of file2 which are mentioned in file1. first character of file1 is a row number.. for eg file1 1:abc 3:ghi 6:pqr file2 a abc b def c ghi d jkl e mno f pqr ... (6 Replies)
Discussion started by: Abhiraj Singh
6 Replies

9. Shell Programming and Scripting

Print row on 4th column to all row

Dear All, I have input : SEG901 5173 9005 5740 SEG902 5227 5284 SEG903 5284 5346 SEG904 5346 9010 SEG905 5400 5456 SEG906 5456 5511 SEG907 5511 9011 SEG908 5572 9015 SEG909 5622 9020 SEG910 5678 5739 SEG911 5739 5796 SEG912 5796 9025 ... (3 Replies)
Discussion started by: attila
3 Replies

10. Shell Programming and Scripting

Filter Row Based On Max Column Value After Group BY

Hello Team, Need your expertise on following: Here is the set of data: C1|4|C1SP1|A1|C1BP1|T1 C1|4|C1SP2|A1|C1BP2|T2 C2|3|C2SP1|A2|C2BP1|T2 C3|3|C3SP1|A3|C3BP1|T2 C2|2|C2SP2|A2|C2BP2|T1 I need to filter above date base on following two steps: 1. Group them by column 1 and 4 2.... (12 Replies)
Discussion started by: angshuman
12 Replies
Table(3)						User Contributed Perl Documentation						  Table(3)

NAME
Tk::Table - Scrollable 2 dimensional table of Tk widgets SYNOPSIS
use Tk::Table; $table = $parent->Table(-rows => number, -columns => number, -scrollbars => anchor, -fixedrows => number, -fixedcolumns => number, -takefocus => boolean); $widget = $table->Button(...); $old = $table->put($row,$col,$widget); $old = $table->put($row,$col,"Text"); # simple Label $widget = $table->get($row,$col); $cols = $table->totalColumns; $rows = $table->totalRows; $table->see($widget); $table->see($row,$col); ($row,$col) = $table->Posn($widget); DESCRIPTION
Tk::Table is an all-perl widget/geometry manager which allows a two dimensional table of arbitary perl/Tk widgets to be displayed. Entries in the Table are simply ordinary perl/Tk widgets. They should be created with the Table as their parent. Widgets are positioned in the table using: $table->put($row,$col,$widget) If $widget is not a reference it is treated as a string, and a Lable widget is created with the string as its text. All the widgets in each column are set to the same width - the requested width of the widest widget in the column. Likewise, all the widgets in each row are set to the same height - the requested height of the tallest widget in the column. A number of rows and/or columns can be marked as 'fixed' - and so can serve as 'headings' for the remainder the rows which are scrollable. The requested size of the table as a whole is such that the number of rows specified by -rows (default 10), and number of columns specified by -columns (default 10) can be displayed. If the Table is told it can take the keyboard focus then cursor and scroll keys scroll the displayed widgets. The Table will create and manage its own scrollbars if requested via -scrollbars. The table can be emptied using $table->clear the widgets which were in the table are destroyed. The Tk::Table widget is derived from a Tk::Frame, so inherits all its configure options. BUGS
/ Snags / Possible enhancements o Very large Tables consume a lot of X windows. o No equivalent of pack's -anchor/-pad etc. options SEE ALSO
Tk::grid, Tk::HList, Tk::TableMatrix, Tk::MListbox, Tk::Columns perl v5.16.3 2014-06-10 Table(3)
All times are GMT -4. The time now is 08:39 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy