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Thanks a lot scutinizer!

The program works fine, but i jus realize tht the number will appear many times because the output will have same NR as input. (not like uniq -c) anymore.

Btw, we dont...

Hi Don,

I presume that in linux OS, awk has not limitations of the file size? And i've no clue about bytes calculations :confused:

Your assumptions to my problems are pretty accurate except...

Hi Don,

Thanks for your response. I'm currently using redhat. The line max is about 100k lines, while the number of fields are 100.

Yup, my desired output shall be what you have corrected. I...

Hi all,

If i would like to process a file input as below:

col1 col2 col3 ...col100
1 A C E A ...
3 D E G A
5 T T A A
6 D C A G

how can i perform a for loop to count the occurences of...