Convert csv documents to other csv documents using node-csv.
var fs = require('fs');
var csvtransformer = require('csv-conversion').transform;
var srcFile = process.argv.slice(2)[0];
var source = srcFile ? fs.createReadStream(srcFile) : process.stdin;
csvtransformer(function(row){return row}, // row-transforming function
source,
{delimiter:","}, // Options for parsing source
{delimiter:";"}); // Options for output
Note you may leave the input and output options out, csv-conversion will then use node-cvs' defaults.
On the command-line, do something like
$> < input.csv node mytransformer.js > output.csv
Or
$> node mytransformer.js input.csv > output.csv