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759 B

#!/usr/bin/env node
var argv = require('optimist')
.usage('Count the lines in a file.\nUsage: $0')
.wrap(80)
.demand('f')
.alias('f', [ 'file', 'filename' ])
.describe('f',
"Load a file. It's pretty important."
+ " Required even. So you'd better specify it."
)
.alias('b', 'base')
.describe('b', 'Numeric base to display the number of lines in')
.default('b', 10)
.describe('x', 'Super-secret optional parameter which is secret')
.default('x', '')
.argv
;
var fs = require('fs');
var s = fs.createReadStream(argv.file);
var lines = 0;
s.on('data', function (buf) {
lines += buf.toString().match(/\n/g).length;
});
s.on('end', function () {
console.log(lines.toString(argv.base));
});