How to run a CMD.exe command from an ASP.NET application?

Question

Here's my code:

string ex = "java -jar \"" + Settings.ClosureCompilerJarLocation + "\" --js \"" + C2runtimePath + "\" --js_output_file \"" + C2runtimeCompiledPath + "\" --language_in ECMASCRIPT5_STRICT --compilation_level ADVANCED_OPTIMIZATIONS --externs \"" + Settings.C2ExternsFolderLocation + "jquery-externs.js\" --externs \"" + Settings.C2ExternsFolderLocation + "c2-externs.js\"";
System.Diagnostics.Process.Start("CMD.exe", ex);

And an example of ex printed just before it executes:

java -jar "C:\inetpub\wwwroot\ScirraNew\static\ac\closure-compiler\compiler.jar" --js "C:\inetpub\wwwroot\arcade\games\46/c2runtime.js" --js_output_file "C:\inetpub\wwwroot\arcade\games\46/c2runtime_COMPILED.js" --language_in ECMASCRIPT5_STRICT --compilation_level ADVANCED_OPTIMIZATIONS --externs "C:\inetpub\wwwroot\ScirraNew\static\ac\templates\jquery-externs.js" --externs "C:\inetpub\wwwroot\ScirraNew\static\ac\templates\c2-externs.js"

It doesn't throw any errors and doesn't complete the command
If I copy + paste the command into cmd.exe myself it runs just fine

There's no point in using `cmd`; you should invoke `java.exe` directly. — SLaks, Nov 23 '11 at 00:25
I believe you need to use the `/c` argument to specify the java command. `System.Diagnostics.Process.Start("cmd.exe", "/c \"java.exe ...\"");` — drew010, Nov 23 '11 at 00:30
@Slaks, thanks! But how do I do this? I'm a total newbie on this — Tom Gullen, Nov 23 '11 at 00:35
You're calling `cmd` with a long argument. Instead, call `java` with the argument you want to pass to `java`. — SLaks, Nov 23 '11 at 00:38

score 3 · Answer 1 · answered Nov 23 '11 at 00:24

3

You need to call WaitForExit() on the resultant Process instance.

answered Nov 23 '11 at 00:24

SLaks

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Thanks, still doing nothing and not throwing an error though. I've seen this question: http://stackoverflow.com/questions/4679561/system-diagnostics-process-start-not-work-fom-an-iis But can't find what process to do it with on IIS 7.5 if this would help? – Tom Gullen Nov 23 '11 at 00:31
Calling `cmd` with that argument is wrong. Either call `java.exe` directly or add `/c`, as noted in the comments on the question. – SLaks Nov 23 '11 at 00:36

score 1 · Answer 2 · answered Nov 23 '11 at 03:26

1

You should execute java.exe directly, with the desired arguments.

Passing cmd.exe a command line won't do anything.

answered Nov 23 '11 at 03:26

SLaks

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How to run a CMD.exe command from an ASP.NET application?

2 Answers2

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