2
votes
2answers
35 views

should I use piping or redirection for sort

I want to do awk -F "," '{print $1 }' inputfile1.txt | sort -u > distinctOutput.txt Is this good performance-wise ? Or should I redirect / use a temp file since I think it is better to make sort ...
1
vote
1answer
47 views

Memory-efficient utility to return N first sorted values

I would like to implement a very popular MapReduce example using only existing programs operating in a UNIX way. The problem is to find N most frequent values in an enormous amount of data. The ...