Inquirer.js - A collection of common interactive command line user interfaces.

•    Javascript

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A collection of common interactive command line user interfaces.Version 4.x only supports Node 6 and over. For Node 4 support please use version 3.x.

prompt command-line javascript-library nodejs command stdin cli tty menu

pngquant - Command-line utility and a library for lossy compression of PNG images

•    C

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pngquant is a PNG compressor that significantly reduces file sizes by converting images to a more efficient 8-bit PNG format with alpha channel (often 60-80% smaller than 24/32-bit PNG files). Compressed images are fully standards-compliant and are supported by all web browsers and operating systems.

palette png png-compression conversion smaller stdin image-optimization quantization image-library

ltcdr - like commander, but accepting pull requests

•    Javascript

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the complete solution for node.js command-line programs

command option parser prompt stdin

parallel - CLI tool to execute shell commands in parallel, based on GNU parallel command

•    Javascript

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CLI tool to execute shell commands in parallel, based on GNU parallel command

parallel cli concurrent commands gnu execute standard input stdin

tmpin - Add stdin support to any CLI app that accepts file input

•    Javascript

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It pipes stdin to a tempfile and spawns the chosen app with the tempfile path as the first argument.Similar to process substitution in ZSH/Bash, but cross-platform and without its limitation.

cli-app cli bin stdio stdin tmp temp shell pipe app file path process substitution

arguable - UNIX style argument parsing that eases the pain of supporting Windows.

•    Javascript

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Usage first argument parser for Node.js.

cadence command option parser prompt cli stdin args arguments console glob

esc-exit - Exit the process when the `esc` key is pressed

•    Javascript

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Useful for CLI tools to let the user press esc to get out.Using this prevents the process from exiting normally.

esc exit process key press stdin readline event escape cli tool

gzip-size-cli - Get the gzipped size of a file or stdin

•    Javascript

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Get the gzipped size of a file or stdin

cli-app cli zlib gzip compressed size file stdin

get-stdin - Get stdin as a string or buffer

•    Javascript

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Both methods returns a promise that is resolved when the end event fires on the stdin stream, indicating that there is no more data to be read.Get stdin as a string.

std stdin stdio concat buffer stream process read

get-urls-cli - Get all URLs in a text file or stdin

•    Javascript

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Get all URLs in a text file or stdin

cli-app cli get urls url uri extract find scrape text string file stdin

dupsh - pipe together two shell commands full duplex

•    Javascript

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Piping together 2 processes full duplex is very handy for testing symmetric and peer to peer protocols because you can use the same program for both sides of the connection. Otherwise you would need to spin up a tcp server and client or otherwise clutter up your program with transport implementation details.and the stderr from both programs falls through.

duplex shell spawn process stdin stdout

wsnc - websocket netcat

•    Javascript

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web socket netcat

unix stdin stdout websocket cat netcat nc

node-tweet-cli - Start making tweets from your bash, zsh, whatever!

•    Javascript

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Small node.js cli tool that allows to tweet from bash, zsh, whatever..You will be able to use tweet command in your shell.

twitter tweet cli pipe stdin stdout console terminal shell bash zsh

ttys - Guaranteed read and write streams to the terminal

•    Javascript

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This micro module provides tty.ReadStream and tty.WriteStream instances to the user's terminal, even when the regular stdin or stdout streams are already being piped to other commands.Suppose you want to provide a curl | node command to your users.

tty stdin stdout /dev/tty

question-store - Ask questions, store the answers.

•    Javascript

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Ask questions, persist the answers. Basic support for i18n and storing answers based on current working directory. Inherits question-cache and persists answers to disk. Answers are stored based on current working directory.

prompt cli command-line store config cache persist answer ask command console create generate generator generators init inquirer menu project prompts question questions scaffold stdin terminal tty util yeoman

bdd-stdin - Utility for easily feeding mock responses to unit tests that require command line input from the user

•    Javascript

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Utility for easily mocking user responses for BDD unit tests that ask user a question. I needed something to help unit testing CLI apps.

bdd tdd unit test mocha jasmine utility stdin response

tubesock - STDIN to WebSocket

•    Javascript

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Tubesock is a little utility that pipes STDIN to a WebSocket (and back again). The port to open the WebSocket server on. Default 9999.

stdin stream pipe tube series-of-tubes websocket

node-mock-stdin - Mock STDIN file descriptor in Node.js

•    Javascript

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Provide a mock readable stream, useful for testing interactive CLI applications. Maybe simple mocks for other standard files wouldn't be a terrible idea, if anyone feels like those are needed. Patches welcome.

test mock node fs stdin

read-file-stdin - Read from a file, falling back to stdin.

•    Javascript

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Read from a file, falling back to stdin. Read from a file, falling back to stdin, and callback(err, buffer).

cli utility stdin read file buffer

process_helper - Makes it easy to spawn Ruby sub-processes with guaranteed exit status handling, capturing and/or suppressing combined STDOUT and STDERR streams, providing STDIN input, timeouts, and running via a pseudo terminal

•    Ruby

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Makes it easy to spawn Ruby sub-processes with guaranteed exit status handling, capturing and/or suppressing combined STDOUT and STDERR streams, providing STDIN input, timeouts, and running via a pseudo terminal. By default, ProcessHelper will combine any STDERR and STDOUT, and output it to STDOUT, and also return it as the result of the #process method.

ruby-processing ruby-cli shell subprocess spawn pseudo-terminal pty stream-stdout stdin stdout interleave-stdout stderr-stream