Unix/Linux Go Back    

Shell Programming and Scripting BSD, Linux, and UNIX shell scripting — Post awk, bash, csh, ksh, perl, php, python, sed, sh, shell scripts, and other shell scripting languages questions here.

Extract minimum/maximum using awk

Shell Programming and Scripting

awk, highest value, lowest value

Thread Tools Search this Thread Display Modes
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.

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:
Extract minimum/maximum using awk 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
Old Unix and Linux 07-10-2013
Don Cragun's Unix or Linux Image
Don Cragun Don Cragun is offline Forum Staff  
Join Date: Jul 2012
Last Activity: 23 October 2017, 10:18 PM EDT
Location: San Jose, CA, USA
Posts: 10,563
Thanks: 555
Thanked 3,699 Times in 3,156 Posts

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:

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
Old Unix and Linux 07-10-2013
Scrutinizer's Unix or Linux Image
Scrutinizer Scrutinizer is offline Forum Staff  
Join Date: Nov 2008
Last Activity: 23 October 2017, 10:49 PM EDT
Location: Amsterdam
Posts: 11,575
Thanks: 510
Thanked 3,356 Times in 2,960 Posts
Just for fun:

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

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: 23 October 2017, 7:46 PM EDT
Location: Galactic Empire
Posts: 3,571
Thanks: 253
Thanked 1,300 Times in 1,219 Posts
Another approach using GNU awk asort function:

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

Sponsored Links

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 12:03 AM.