bsutton

import 'dart:async';
void main() {

  print('hi');
  var res = doCalc();
  print('value = ${res}');
  
  res.then((result) => print('result = $result'));
}

bsutton

#! /usr/bin/env dshell
import 'dart:io';
import 'package:dshell/dshell.dart';

/// duntar <tarfile>
/// untars a file

void main(List<String> args) {
  var parser = ArgParser();
  var results = parser.parse(args);

bsutton

import 'dart:async';
import 'dart:convert';
import 'dart:io';

void main() async {
  
 var ls = await start('ls');
  var head = await start('head');
  var headStdout = head.stdout;

bsutton

#! /usr/bin/env dshell
import 'dart:io';
import 'package:dshell/dshell.dart';

/// dwhich appname - searches for 'appname' on the path
void main(List<String> args) {
  var parser = ArgParser();
  parser.addFlag('verbose', abbr: 'v', defaultsTo: false, negatable: false);

  var results = parser.parse(args);

bsutton

#! /usr/bin/env dshell
import 'dart:io';
import 'package:dshell/dshell.dart';

void main(List<String> args) {
    
  print('${args.length} were passed');
  int index = 0;
  for (var arg in args)
  {

bsutton

#! /usr/bin/env dshell
import 'package:dshell/dshell.dart';

void main(List<String> args) {
    
  print('${args.length} were passed');
  int index = 0;
  for (var arg in args)
  {
    print('arg $index = $arg);

bsutton

#! /usr/bin/env dshell
import 'package:dshell/dshell.dart';

void main() {
    'grep error /var/log/syslog'.forEach((line) => print(line));

  'grep error /var/log/syslog'.forEach((line) { print('matched $line'); });

  'grep error /var/log/syslog'.forEach((line) => print(line), stderr:(line) => print(red(line)));
}

bsutton

#! /usr/bin/env dshell
import 'package:dshell/dshell.dart';

void main() {
  'grep error /var/log/syslog'.run;
}

bsutton

dshell create hellow.dart
Creating project.
Created Virtual Project at /home/bsutton/.dshell/cache/home/bsutton/git/dshell/test/test_scripts/hellow.project
Running pub get...
Resolving dependencies...
+ args 1.5.2
+ charcode 1.1.2
+ collection 1.14.12
+ dshell 1.0.36 
+ equatable 1.0.2

bsutton

chmod +x hello_world.dart
./hello_world.dart