Merge multiple headered CSV files into one output file.

gem install dorian-csv-merge

Also included in the aggregate gem:

gem install dorian

csv-merge input1.csv input2.csv output.csv

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

• The last argument is the output path. Headers are taken from the first input and written once.

csv-merge users-1.csv users-2.csv users.csv