argv-or-stdin
Advanced tools
use the 1st argument, or, if none is present, standard input
Sometimes you want to write a tool that takes a filename as its argument. However, if there is no argument provided, it'd be great to also accept it on standard input.
Let's write a simple version of the program cat:
cat.js
var arg = require('argv-or-stdin')
var fs = require('fs')
arg(function (err, filename) {
fs.createReadStream(filename)
.pipe(process.stdout)
})
And test it:
$ cat > test
hello warld
^D
$ node cat.js test
hello warld
$ echo 'test' | node cat.js
hello warld
var arg = require('argv-or-stdin')
A function that will check process.argv[2] and, if it does not exist,
accumulate all of process.stdin into a string and return that.
cb is a callback function of the form function (err, name) {}.
With npm installed, run
$ npm install argv-or-stdin
ISC
FAQs
use the 1st argument, or, if none is present, standard input
The npm package argv-or-stdin receives a total of 0 weekly downloads. As such, argv-or-stdin popularity was classified as not popular.
We found that argv-or-stdin demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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