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Shell Programming and Scripting

awk to find the max

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# 8  
Old 04-08-2013
Quote:
Originally Posted by sathyaonnuix
@Franklin,

Rather retrieving the entire line, I just want to print the column1 with comma separated.

Code:
# awk -F, 'NR==FNR{if($3 > m){m=$3}next}$3==m' file file
XYZf,23,29,5
XYZz,23,29,5

Try:
Code:
awk -F, 'NR==FNR{if($3>m){m=$3}next}$3==m{s=s?s FS $1:$1}END{print s}' file file

This User Gave Thanks to Franklin52 For This Post:
sathyaonnuix
# 9  
Old 04-08-2013
its works, thanks Franklin. can you explain how file file works in the code.
# 10  
Old 04-08-2013
Quote:
Originally Posted by sathyaonnuix
its works, thanks Franklin. can you explain how file file works in the code.
awk reads the file twice. The condition NR==FNR is true when awk reads the file the first time.
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