csv-pair
Combines two CSV files merging identical columns
Example: combine two CSV files. Some columns are identical, some are different
a.csv
name,age,occupation
John,20,student
Mary,21,student
b.csv
name,age,occupation
John,20,teacher
Mary,21,doctor
Let us combine these two CSV files. Identical columns will be collapsed. Different values will have duplicate column
csv-pair a.csv b.csv combined.csv
combined.csv
name,age,occupation - a.csv,occupation - b.csv
John,20,student,teacher
Mary,21,student,doctor
Install
Need NodeJS, you can check if Node is installed locally by opening a terminal window and trying command
node --version
Then install this application
sudo npm install -g csv-pair
Check if the tool has been installed by running from the terminal. It should show the input parameters
$ csv-pair
Usage: <filename1.csv> <filename2.csv> <output.csv>
Small print
Author: Gleb Bahmutov © 2015
License: MIT - do anything with the code, but don't blame me if it does not work.
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Support: if you find any problems with this module, email / tweet / open issue on Github
MIT License
Copyright (c) 2015 Gleb Bahmutov
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.