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'use strict';
const common = require('../common');
const fixtures = require('../common/fixtures');
const assert = require('assert');
const exec = require('child_process').exec;
const nodePath = process.argv[0];
const script = fixtures.path('print-10-lines.js');
const cmd = `"${nodePath}" "${script}" | head -2`;
exec(cmd, common.mustCall(function(err, stdout, stderr) {
assert.ifError(err);
const lines = stdout.split('\n');
assert.strictEqual(lines.length, 3);
}));