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30 lines
756 B
JavaScript
30 lines
756 B
JavaScript
#!/usr/bin/env node
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var argv = require('yargs')
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.usage('Count the lines in a file.\nUsage: $0')
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.wrap(80)
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.demand('f')
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.alias('f', [ 'file', 'filename' ])
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.describe('f',
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"Load a file. It's pretty important."
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+ " Required even. So you'd better specify it."
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)
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.alias('b', 'base')
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.describe('b', 'Numeric base to display the number of lines in')
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.default('b', 10)
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.describe('x', 'Super-secret optional parameter which is secret')
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.default('x', '')
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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.toString(argv.base));
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});
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