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21 lines
409 B
JavaScript
21 lines
409 B
JavaScript
5 years ago
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#!/usr/bin/env node
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var argv = require('optimist')
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.usage('Count the lines in a file.\nUsage: $0')
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.demand('f')
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.alias('f', 'file')
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.describe('f', 'Load a file')
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.argv
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;
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var fs = require('fs');
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var s = fs.createReadStream(argv.file);
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var lines = 0;
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s.on('data', function (buf) {
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lines += buf.toString().match(/\n/g).length;
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});
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s.on('end', function () {
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console.log(lines);
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});
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