csvjoin [OPTIONS] CSV1 CSV2 COL1 COL2
csvjoin outputs CSV content based on two CSV files with match column values. Each CSV input file has a designated column to match on. The values are compared as strings.
-h display help
-help display help
-l display license
-license display license
-v display version
-version display version
Simple usage of building a merged CSV file from data1.csv and data2.csv where column 1 in data1.csv matches the value in column 3 of data2.csv.
csvjoin data1.csv data2.csv 1 3 > merged-data.csv