使用 NSTask 运行终端命令
我想在我的程序中运行终端命令。 该命令如下所示：
cd /path/to/file/; ./foo HTTPProxy 127.0.0.1
它适用于 system()，但当我使用 NSTask 时它不起作用。
system("cd /path/to/file/; ./foo HTTPProxy 127.0.0.1");
工作正常但
NSTask *task = [[NSTask alloc] init];
[task setLaunchPath:@"/path/to/file/./foo"];
NSPipe *pipe = [NSPipe pipe];
[task setStandardOutput:pipe];
NSFileHandle *file = [pipe fileHandleForReading];
[task setArguments:[NSArray arrayWithObjects:@"HTTPProxy 127.0.0.1", nil]];
[task launch];
NSData *data = [file readDataToEndOfFile];
NSString *string = [[NSString alloc] initWithData: data encoding: NSUTF8StringEncoding];
NSLog(string);
没有。 输出：
Command-line option 'HTTPProxy 127.0.0.1' with no value. Failing.
有人有想法吗？
I want to run a Terminal command in my program.
The command looks like this:
cd /path/to/file/; ./foo HTTPProxy 127.0.0.1
It works with system() but it doesn't work when I use NSTask.
system("cd /path/to/file/; ./foo HTTPProxy 127.0.0.1");
works fine but
NSTask *task = [[NSTask alloc] init];
[task setLaunchPath:@"/path/to/file/./foo"];
NSPipe *pipe = [NSPipe pipe];
[task setStandardOutput:pipe];
NSFileHandle *file = [pipe fileHandleForReading];
[task setArguments:[NSArray arrayWithObjects:@"HTTPProxy 127.0.0.1", nil]];
[task launch];
NSData *data = [file readDataToEndOfFile];
NSString *string = [[NSString alloc] initWithData: data encoding: NSUTF8StringEncoding];
NSLog(string);
doesn't.
Output:
Command-line option 'HTTPProxy 127.0.0.1' with no value. Failing.
Has anybody an idea?
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现在我想我已经明白了：
这些是从命令行调用中的单独参数...
旧答案：
您可以尝试设置当前执行目录：
这基本上是 cd 的效果代码的
系统版本。Now I think I have got it:
those are separate arguments in your invocation from the command line...
OLD ANSWER:
You could trying setting the current directory for execution:
This is basically the effect of
cdin thesystemversion of your code.