| 1 | #!/usr/bin/env node
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| 2 | var argv = require('optimist')
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| 3 | .usage('Count the lines in a file.\nUsage: $0')
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| 4 | .wrap(80)
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| 5 | .demand('f')
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| 6 | .alias('f', [ 'file', 'filename' ])
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| 7 | .describe('f',
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| 8 | "Load a file. It's pretty important."
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| 9 | + " Required even. So you'd better specify it."
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| 10 | )
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| 11 | .alias('b', 'base')
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| 12 | .describe('b', 'Numeric base to display the number of lines in')
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| 13 | .default('b', 10)
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| 14 | .describe('x', 'Super-secret optional parameter which is secret')
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| 15 | .default('x', '')
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| 16 | .argv
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| 17 | ;
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| 18 |
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| 19 | var fs = require('fs');
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| 20 | var s = fs.createReadStream(argv.file);
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| 21 |
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| 22 | var lines = 0;
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| 23 | s.on('data', function (buf) {
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| 24 | lines += buf.toString().match(/\n/g).length;
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| 25 | });
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| 26 |
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| 27 | s.on('end', function () {
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| 28 | console.log(lines.toString(argv.base));
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| 29 | });
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