Map CSV rows to a new CSV stream with Ruby.

gem install dorian-csv-map

Also included in the aggregate gem:

gem install dorian

csv-map [options] [file ...] "ruby code"

Run csv-map -h for generated option details and csv-map -v for the installed version.

• Mutate it inside the snippet. With --headers, headers are preserved and it is a struct.

echo a,b,c | csv-map "it[1].upcase!"

Output:

a,B,c