Unix/Linux Go Back    


Shell Programming and Scripting Unix shell scripting - KSH, CSH, SH, BASH, PERL, PHP, SED, AWK and shell scripts and shell scripting languages here.

Extract minimum/maximum using awk

Shell Programming and Scripting


Tags
awk, highest value, lowest value

Closed Linux or Unix Question    
 
Thread Tools Search this Thread Display Modes
    #1  
Old Unix and Linux 07-10-2013
gwgreen1's Unix or Linux Image
gwgreen1 gwgreen1 is offline
Registered User
 
Join Date: Oct 2008
Last Activity: 10 July 2013, 6:27 AM EDT
Posts: 26
Thanks: 6
Thanked 0 Times in 0 Posts
Facebook Extract minimum/maximum using awk

From the below table I want to print highest value and lowest value using awk script.

Code:
aaa 55 66 96 77
ggg 22 96 77 23
ddd 74 58 18 3
kkk  45 89 47 92
zzz  34 58 89 92

Thanks, Green

Moderator's Comments:
edit by bakunin: it sure is not news to you that you should use CODE-tags, no? And that we do not want such informative thread titles as "help needed" you sur haven't heard for the first time either, did you?

I changed the thread title and inserted the missing CODE-tags, but you should really consider changing your attitude and posting behavior.

Last edited by bakunin; 07-10-2013 at 06:38 AM..
Sponsored Links
    #2  
Old Unix and Linux 07-10-2013
Don Cragun's Unix or Linux Image
Don Cragun Don Cragun is online now Forum Staff  
Moderator
 
Join Date: Jul 2012
Last Activity: 5 July 2015, 12:24 AM EDT
Location: San Jose, CA, USA
Posts: 6,655
Thanks: 281
Thanked 2,222 Times in 1,904 Posts
Try:

Code:
awk '
first == "" {
	m = $2
	M = $2
	first = "done"
}
{	for(i = 2; i <= NF; i++) {
		if($i < m) m = $i
		if($i > M) M = $i
	}
}
END {	print m, M
}' table

If you are using a Solaris system, use /usr/xpg4/bin/awk , /usr/xpg6/bin/awk , or nawk instead of /usr/bin/awk or /bin/awk .

If table contains your sample input, the output produced is:

Code:
3 96

which are the minimum and maximum values in your data (ignoring the 1st column in each line).
The Following User Says Thank You to Don Cragun For This Useful Post:
RavinderSingh13 (07-10-2013)
Sponsored Links
    #3  
Old Unix and Linux 07-10-2013
Scrutinizer's Unix or Linux Image
Scrutinizer Scrutinizer is online now Forum Staff  
Moderator
 
Join Date: Nov 2008
Last Activity: 5 July 2015, 12:25 AM EDT
Location: Amsterdam
Posts: 10,305
Thanks: 346
Thanked 2,724 Times in 2,436 Posts
Just for fun:

Code:
awk 'NR==1 || $1==""{next} l=="" || $1<l{l=$1} $1>h{h=$1} END{print l,h}' RS=" " file

    #4  
Old Unix and Linux 07-10-2013
Yoda's Unix or Linux Image
Yoda Yoda is offline Forum Advisor  
Jedi Master
 
Join Date: Jan 2012
Last Activity: 4 July 2015, 1:12 AM EDT
Location: Galactic Empire
Posts: 3,409
Thanks: 240
Thanked 1,217 Times in 1,143 Posts
Another approach using GNU awk asort function:

Code:
xargs -n1 < file | gawk '/^[0-9]*$/{A[NR]=$1}END{n=asort(A);print A[1],A[n]}'

Sponsored Links
Closed Linux or Unix Question

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Linux More UNIX and Linux Forum Topics You Might Find Helpful
Thread Thread Starter Forum Replies Last Post
Getting average ,maximum and minimum value zozoo Shell Programming and Scripting 3 02-04-2013 09:30 PM
Finding minimum maximum and average aroragaurav.84 Shell Programming and Scripting 5 12-13-2012 03:50 PM
Print minimum and maximum values using awk quincyjones Shell Programming and Scripting 2 12-13-2012 06:39 AM
minimum and maximum from columns jacobs.smith Shell Programming and Scripting 4 09-11-2012 08:33 PM
for each different entry in column 1 extract maximum values from column 2 in unix/awk Diya123 Shell Programming and Scripting 1 07-19-2011 02:37 PM



All times are GMT -4. The time now is 12:25 AM.