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copied!<p>I ended up doing the following:</p> <pre><code> //create a new stdout file stream var stdoutFS = fs.createWriteStream(stdoutFile, { encoding: 'utf8', flags : 'a+' }); //create a new stderr file stream var stderrFS = fs.createWriteStream(stderrFile, { encoding: 'utf8', flags : 'a+' }); //pipe stdout to a worker file var unhookStdout = hookWriteStream(stdout, function(string, encoding, fd) { stdoutFS.write(string, encoding || 'utf8'); }); console.log('\n\nPrepared new stdout hook to worker file.'); //pipe stderr to a worker file var unhookStderr = hookWriteStream(stderr, function(string, encoding, fd) { stderrFS.write(string, encoding || 'utf8'); }); console.log('Prepared new stderr hook to worker file.'); //unhook when things go wrong stdoutFS.once('close', function() { unhookStdout(); console.log('Unhooked stdout.'); }); stdoutFS.once('error', function(err) { unhookStdout(); console.error('Error: Unhooked stdout due to error %j.', err); }); stderrFS.once('close', function() { unhookStderr(); console.log('Unhooked stderr.'); }); stderrFS.once('error', function(err) { unhookStderr(); console.error('Error: Unhooked stderr due to error %j.', err); }); }); function hookWriteStream(stream, callback) { var oldWrite = stream.write; stream.write = (function(write) { return function(string, encoding, fd) { write.apply(stream, arguments); callback(string, encoding, fd); }; })(stream.write); return function() { stream.write = oldWrite; }; } </code></pre> <p>It may not be very elegant, but so far this is the best solution I've found.</p>

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