Login or Register to Ask a Question and Join Our Community

Sponsored Content
Full Discussion: Calc max of a column
Top Forums Shell Programming and Scripting Calc max of a column Post 302408810 by rafazz on Tuesday 30th of March 2010 02:13:30 PM
Old 03-30-2010
I am getting the content from file.sh
Code:
name:price
Ronaldo:5800
Figo:4000
Rafael:2321
Kaka:1230

I write this..
Code:
while read name price
do
  [[ "$price" -ge "${MAX}" ]] && MAX=$price
done <$price
echo "Max value = $MAX" ;

The error..
Code:
./file.sh: line 29: $price: ambiguous redirect

Last edited by Scott; 03-30-2010 at 06:14 PM.. Reason: Please use code tags
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

Max column count in a file

I have to send a file to mainframe and before sending it, I have to execute the quote command to set the record length. Since the file is dynamic, I do not know what the maximum size of a line could be. Currently, I use the following function to get the Max Column Count. Since I use "sed" it... (2 Replies)
Discussion started by: gemini
2 Replies

2. Shell Programming and Scripting

Search max value in a column in a file instead of sort

Hi Everyone, 1.txt 00:00:00 0 0 0 0 0 0 0 00:00:01 0 0 0 2 1 33 2 00:00:02 5 0 0 0 0 0 0 00:00:03 0 4 0 0 0 0 0... (5 Replies)
Discussion started by: jimmy_y
5 Replies

3. Shell Programming and Scripting

loop in awk - column max for each column

Hello all, this should really be easy for you... I need AWK to print column maxima for each column of such input: Input: 1 2 3 1 2 1 1 3 2 1 1 2 Output should be: 2 2 3 3 This does the sum, but i need max instead: { for(i=1; i<=NF; i++) sum +=$i } END {for(i=1; i in sum;... (3 Replies)
Discussion started by: irrevocabile
3 Replies

4. Shell Programming and Scripting

Join and awk max column

Hi Friends, I have a file1 with 3400 records that are tab separated and I have a file2 with 6220 records. I want to merge both these files. I tried using join file1 and file2 after sorting. But, the records should be (3400*6220 = 21148000). Instead, I get only around 11133567. Is there anything... (13 Replies)
Discussion started by: jacobs.smith
13 Replies

5. Shell Programming and Scripting

to find min and max value for each column!

Hello Experts, I have got a txt files which has multiple columns, I want to get the max, min and diff (max-min) for each column in the same txt file. Example: cat file.txt a 1 4 b 2 5 c 3 6 I want ouput like: cat file.txt a 1 4 b 2 5 c 3 6 Max 3 6 Min 1 4 Diff 2 2 awk 'min=="" ||... (4 Replies)
Discussion started by: dixits
4 Replies

6. Shell Programming and Scripting

AWK script to create max value of 3rd column, grouping by first column

Hi, I need an awk script (or whatever shell-construct) that would take data like below and get the max value of 3 column, when grouping by the 1st column. clientname,day-of-month,max-users ----------------------------------- client1,20120610,5 client2,20120610,2 client3,20120610,7... (3 Replies)
Discussion started by: ckmehta
3 Replies

7. UNIX for Dummies Questions & Answers

get max value every 4 rows between 2 column

Hi all I have a file that has two columns and I need the maximum value in column 2 of 4 positions o rows. for example at position {1..3} there are 4 characters (A, C, G and T) each of these characters with a value with a value in column 2. I need the maximum value in column 2 and the corresponding... (2 Replies)
Discussion started by: xinox
2 Replies

8. 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

9. Shell Programming and Scripting

Get the MAX value out of a column

I've the following data set. I would like to look at the column 3 and only use the rows which has the max value for column 3 Can we use the awk or sed to achieve it. 10 2 10 100 11 2 20 100 12 2 30 100 13 2 30 100 14 ... (7 Replies)
Discussion started by: rudoraj
7 Replies

10. Shell Programming and Scripting

Get min and max value in column

Gents, I have a big file file like this. 5100010002 5100010004 5100010006 5100010008 5100010010 5100010012 5102010002 5102010004 5102010006 5102010008 5102010010 5102010012 The file is sorted and I would like to find the min and max value, taking in the consideration key1... (3 Replies)
Discussion started by: jiam912
3 Replies

LEARN ABOUT LINUX

fsf-funding

FSF-FUNDING(7)								GNU							    FSF-FUNDING(7)

NAME

       fsf-funding - Funding Free Software

DESCRIPTION

       Funding Free Software

       If you want to have more free software a few years from now, it makes sense for you to help encourage people to contribute funds for its
       development.  The most effective approach known is to encourage commercial redistributors to donate.

       Users of free software systems can boost the pace of development by encouraging for-a-fee distributors to donate part of their selling
       price to free software developers---the Free Software Foundation, and others.

       The way to convince distributors to do this is to demand it and expect it from them.  So when you compare distributors, judge them partly
       by how much they give to free software development.  Show distributors they must compete to be the one who gives the most.

       To make this approach work, you must insist on numbers that you can compare, such as, ``We will donate ten dollars to the Frobnitz project
       for each disk sold.''  Don't be satisfied with a vague promise, such as ``A portion of the profits are donated,'' since it doesn't give a
       basis for comparison.

       Even a precise fraction ``of the profits from this disk'' is not very meaningful, since creative accounting and unrelated business deci-
       sions can greatly alter what fraction of the sales price counts as profit.  If the price you pay is $50, ten percent of the profit is prob-
       ably less than a dollar; it might be a few cents, or nothing at all.

       Some redistributors do development work themselves.  This is useful too; but to keep everyone honest, you need to inquire how much they do,
       and what kind.  Some kinds of development make much more long-term difference than others.  For example, maintaining a separate version of
       a program contributes very little; maintaining the standard version of a program for the whole community contributes much.  Easy new ports
       contribute little, since someone else would surely do them; difficult ports such as adding a new CPU to the GNU Compiler Collection con-
       tribute more; major new features or packages contribute the most.

       By establishing the idea that supporting further development is ``the proper thing to do'' when distributing free software for a fee, we
       can assure a steady flow of resources into making more free software.

SEE ALSO

       gpl(7), gfdl(7).

COPYRIGHT

       Copyright (c) 1994 Free Software Foundation, Inc.  Verbatim copying and redistribution of this section is permitted without royalty; alter-
       ation is not permitted.

gcc-3.3 							    2003-03-01							    FSF-FUNDING(7)
All times are GMT -4. The time now is 06:31 AM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy