gistfile1.txt

pipe(): Too many open files

child_process:191
  var fds = this.fds = this._internal.spawn(path, args, cwd, envPairs, customF
                                      ^
Error: Error spawning
    at ChildProcess.spawn (child_process:191:39)
    at child_process:9:15
    at Object.execFile (child_process:59:15)
    at child_process:15:20
    at /Users/justin/dev/lrr/node/pdxcrime/lib/test.js:7:3
    at /usr/local/Cellar/npm/0.2.2/lib/node/.npm/ecsv/0.3.2-1-LINK-1d3612b9/package/lib/ecsv.js:76:34
    at Array.forEach (native)
    at [object Object].<anonymous> (/usr/local/Cellar/npm/0.2.2/lib/node/.npm/ecsv/0.3.2-1-LINK-1d3612b9/package/lib/ecsv.js:54:13)
    at [object Object].emit (events:27:15)
    at [object Object]._emitData (fs:733:29)

test.js

var sys   = require('sys'),
    exec  = require('child_process').exec,
    fs    = require('fs'),
    ecsv  = require('ecsv')

ecsv.each('../pub/data/crime_incident_data.csv', function(crime) {
  exec('wc -c "foo"', function(err, stdout, stderr) {
    console.log('woot'); 
  })
})

even this produces this error for me:
var sys = require('sys'),
exec = require('child_process').exec,
// fs = require('fs');
// ecsv = require('ecsv')

//ecsv.each('../pub/data/crime_incident_data.csv', function(crime) {
for (i = 0 ; i < 350; i ++) {
  exec('wc -c "foo"', function(err, stdout, stderr) {
    console.log('woot'); 
  });
} 

//})

the short answer is do you really need to open so many files?