Node.js (since version 0.12 – so for a while) supports execSync: child_process.execSync(command[, options]) You can now directly do this: const execSync = require(‘child_process’).execSync; code = execSync(‘node -v’); and it’ll do what you expect. (Defaults to pipe the i/o results to the parent process). Note that you can also spawnSync now.
<Grid > <Grid.ColumnDefinitions> <ColumnDefinition Width=”*”/> </Grid.ColumnDefinitions> <Button Command=”{Binding ClickCommand}” Width=”100″ Height=”100″ Content=”wefwfwef”/> </Grid> the code behind for the window: public partial class MainWindow : Window { public MainWindow() { InitializeComponent(); DataContext = new ViewModelBase(); } } The ViewModel: public class ViewModelBase { private ICommand _clickCommand; public ICommand ClickCommand { get { return _clickCommand ?? (_clickCommand … Read more
Use eval: x=”ls | wc” eval “$x” y=$(eval “$x”) echo “$y”
shell_exec returns all of the output stream as a string. exec returns the last line of the output by default, but can provide all output as an array specifed as the second parameter. See http://php.net/manual/en/function.shell-exec.php http://php.net/manual/en/function.exec.php
(This answer has been updated to match SVN 1.8 and 1.9’s behaviour) You have 2 questions: Marking files as ignored: By “ignored file” I mean the file won’t appear in lists even as “unversioned”: your SVN client will pretend the file doesn’t exist at all in the filesystem. Ignored files are specified by a “file … Read more
A shell function could help on this: [alias] files = “!f() { git diff –name-status \”$1^\” \”$1\”; }; f” An alias without ! is treated as a Git command; e.g. commit-all = commit -a. With the !, it’s run as its own command in the shell, letting you use stronger magic like this. UPD Because … Read more
python3 is not Python syntax, it is the Python binary itself, the thing you run to get to the interactive interpreter. You are confusing the command line with the Python prompt. Open a console (Windows) or terminal (Linux, Mac), the same place you’d use dir or ls to explore your filesystem from the command line. … Read more
They have slightly different purposes. exec() is for calling a system command, and perhaps dealing with the output yourself. system() is for executing a system command and immediately displaying the output – presumably text. passthru() is for executing a system command which you wish the raw return from – presumably something binary. Regardless, I suggest … Read more
this is all you have to do run shell commands from C# string strCmdText; strCmdText= “/C copy /b Image1.jpg + Archive.rar Image2.jpg”; System.Diagnostics.Process.Start(“CMD.exe”,strCmdText); EDIT: This is to hide the cmd window. System.Diagnostics.Process process = new System.Diagnostics.Process(); System.Diagnostics.ProcessStartInfo startInfo = new System.Diagnostics.ProcessStartInfo(); startInfo.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden; startInfo.FileName = “cmd.exe”; startInfo.Arguments = “/C copy /b Image1.jpg + Archive.rar … Read more
Use the subprocess module in the standard library: import subprocess subprocess.run([“ls”, “-l”]) The advantage of subprocess.run over os.system is that it is more flexible (you can get the stdout, stderr, the “real” status code, better error handling, etc…). Even the documentation for os.system recommends using subprocess instead: The subprocess module provides more powerful facilities for … Read more