How do I convert a tab-separated values (TSV) file to a comma-separated values (CSV) file in BASH?

Question

I have some TSV files that I need to convert to CSV files. Is there any solution in BASH, e.g. using awk, to convert these? I could use sed, like this,

Answer 1

Using awk works for me

converting tsv to csv

awk 'BEGIN { FS="\t"; OFS="," } {$1=$1; print}' file.tsv > file.csv

or converting csv to tsv

awk 'BEGIN { FS=","; OFS="\t" } {$1=$1; print}' file.csv > file.tsv