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To find sum & average of 8th field

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Top Forums Shell Programming and Scripting To find sum & average of 8th field
# 8  
Old 05-13-2011
Code:
awk -F, 'BEGIN{max=0;total=0}{if((100-$8) > max){max =(100-$8)};total=total+(100-$8)}END{print max,total/NR}' text.txt

This User Gave Thanks to kumaran_5555 For This Post:
SunilB2011
# 9  
Old 05-13-2011
MySQL It is working
Quote:
Originally Posted by bartus11
Code:
awk -F, '{sub ("%","",$8);sum+=100-$8;if (100-$8>max){max=100-$8}}END{printf "max=%.1f%\navg=%.1f%\n",max,sum/NR}' file

Thanks. This solution is working fine.

---------- Post updated at 05:03 PM ---------- Previous update was at 05:02 PM ----------

Quote:
Originally Posted by kumaran_5555
Code:
awk -F, 'BEGIN{max=0;total=0}{if((100-$8) > max){max =(100-$8)};total=total+(100-$8)}END{print max,total/NR}' text.txt

Thanks. This solution is also working fine.
# 10  
Old 05-16-2011
How can I run this command on multiple files at a time?
Quote:
Originally Posted by bartus11
Code:
awk -F, '{sub ("%","",$8);sum+=100-$8;if (100-$8>max){max=100-$8}}END{printf "max=%.1f%\navg=%.1f%\n",max,sum/NR}' file

Hi,

How can I run this command on multiple files at a time?

Thanks,
Sunil
# 11  
Old 05-16-2011
Give multiple file names seperated by space instead of just 'file'
This User Gave Thanks to kumaran_5555 For This Post:
SunilB2011
# 12  
Old 05-16-2011
Code:
perl -F, -lane 'BEGIN{$max=0;$avg=0;$i} $i++;$F[7]=~s/%//g; $max=$F[7] if($F[7]>$max); $avg+= $F[7];END{print $max;print($avg/$i)}'

Thanks,
MG
This User Gave Thanks to getmmg For This Post:
SunilB2011
# 13  
Old 05-16-2011
Code:
# awk -F"[,%]" '{x=$(NF-1);if(m<x)m=x;s+=x}END{printf "max=%.1f%%\nsum=%.1f\navg=%.1f%%\n",m,s,s/NR}' infile
max=98.5%
sum=1061.7
avg=96.5%

Use nawk or /usr/xpg4/bin/awk if running on SunOS/Solaris plateform

Note that the display of the '%' as litteral may vary from OS and/or OS version of awk/nawk... implementation to another.
(some must be written \% some other %% and some tolerate a simple %)...so ... just adapt the code so it displays the % correctly for you.
Last edited by ctsgnb; 05-16-2011 at 02:32 PM..
This User Gave Thanks to ctsgnb For This Post:
SunilB2011
# 14  
Old 05-17-2011
Thank you all for your help. My issue is resolved.

Best Regards,
Sunil
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