fastest way convert tab-delimited file to csv in linux

Question

I have a tab-delimited file that has over 200 million lines. What\'s the fastest way in linux to convert this to a csv file? This file does have multiple lines of header i

Answer 1

You can also use xsv for this

xsv input -d '\t' input.tsv > output.csv

In my test on a 300MB tsv file, it was roughly 5x faster than the python solution (2.5s vs. 14s).