Execute unix shell command process as RxJS Observable like Rx.Observable.exec('echo hello').subscribe(...)

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Install

npm install rxjs-exec
Rx=require('rxjs');
require('rxjs-exec').patch(Rx.Observable);

Usage

Run unix command (exec)

Rx.Observable.exec('echo Hello World')
.subscribe(function(output){console.log(output);});

->

Hello World

Filtering (execFilter)

Rx.Observable.exec('echo Hello World').execFilter('sed s/World/rxjs-exec/')
.subscribe(function(output){console.log(output);});

->

Hello rxjs-exec

#same as 
#>echo Hello World|sed s/World/rxjs-exec/

Parallel execution (mapExec/mapExecFilter)

var commands=[
    'echo foo',
    'echo bar',
    'echo boo'
]

Rx.Observable.from(commands)
.mapExec().mapExecFilter('sed s/o/x/g')
.subscribe(function(output){console.log(output);});

->

fxx
bar
bxx

#same as 
#>echo foo|sed s/o/x/g &
#>echo bar|sed s/o/x/g &
#>echo boo|sed s/o/x/g &
var commands=[
    'echo foo',
    'echo bar',
    'echo boo'
]

Rx.Observable.from(commands)
.mapExec().execFilter('sed s/o/x/g')
.subscribe(function(output){console.log(output);});

->

fxx
bar
bxx

#same as 
#>{ echo foo;echo bar;echo boo }|sed s/o/x/g

Connecting process.stdin

#test.js

Rx.Observable.exec('cat',{stdin:true})
.subscribe(function(output){console.log(output);});

>echo Hello|node test.js

-> Hello

Buffer(binary) output

Rx.Observable.exec('echo Hello',{binary:true})
.execFilter('cat',{binary:true}).
.subscribe(function(output){console.log(output);});

-> <Buffer 48 65 6c 6c 6f 0a>

ES7 style

import Rx from 'rxjs';
import {exec,execFilter,mapExec,mapExecFilter} from 'rxjs-exec'

Rx.Observable::exec('echo Hello World')::execFilter('sed s/World/rxjs-exec/').subscribe(v=>console.log(v));

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