| Current Path : /usr/share/doc/node-yargs/examples/ |
| Current File : //usr/share/doc/node-yargs/examples/line_count.js |
#!/usr/bin/env node
var argv = require('yargs/yargs')(process.argv.slice(2))
.usage('Count the lines in a file.\nUsage: $0')
.demand('f')
.alias('f', 'file')
.describe('f', 'Load a file')
.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);
});