system() runs command as cmd /C command. And here’s citation from cmd doc: If /C or /K is specified, then the remainder of the command line after the switch is processed as a command line, where the following logic is used to process quote (“) characters: 1. If all of the following conditions are met, … Read more
You should pass the arguments as a list (recommended): subprocess.Popen([“wc”, “-l”, “sorted_list.dat”], stdout=subprocess.PIPE) Otherwise, you need to pass shell=True if you want to use the whole “wc -l sorted_list.dat” string as a command (not recommended, can be a security hazard). subprocess.Popen(“wc -l sorted_list.dat”, shell=True, stdout=subprocess.PIPE) Read more about shell=True security issues here.
You want the “popen” function. Here’s an example of running the command “ls /etc” and outputing to the console. #include <stdio.h> #include <stdlib.h> int main( int argc, char *argv[] ) { FILE *fp; char path[1035]; /* Open the command for reading. */ fp = popen(“/bin/ls /etc/”, “r”); if (fp == NULL) { printf(“Failed to run … Read more
Here is where I found the answer.; I have reposted it here to improve clarity. Define this structure: [StructLayout(LayoutKind.Sequential)] public struct SYSTEMTIME { public short wYear; public short wMonth; public short wDayOfWeek; public short wDay; public short wHour; public short wMinute; public short wSecond; public short wMilliseconds; } Add the following extern method to your … Read more
There are multiple problems here: First of all, system() as a function is cross-platform and available not just on Windows or Linux. However, the actual programs being called might be platform dependant. For example, you can use system() to create a directory: system(“md Temp”). This will only work on Windows, as Linux doesn’t know a … Read more
From the popen manual: #include <stdio.h> FILE *popen(const char *command, const char *type); int pclose(FILE *stream);
You might need to run it via cmd, eg: system(“cmd /c C:[path to file]”);
If you check out the subprocess section of the Python docs, you’ll notice there is an example of how to replace os.system() with subprocess.Popen(): sts = os.system(“mycmd” + ” myarg”) …does the same thing as… sts = Popen(“mycmd” + ” myarg”, shell=True).wait() The “improved” code looks more complicated, but it’s better because once you know … Read more
Example how to use it: if (android.os.Build.VERSION.SDK_INT >= android.os.Build.VERSION_CODES.GINGERBREAD) { // only for gingerbread and newer versions }
System properties are set on the Java command line using the -Dpropertyname=value syntax. They can also be added at runtime using System.setProperty(String key, String value) or via the various System.getProperties().load() methods. To get a specific system property you can use System.getProperty(String key) or System.getProperty(String key, String def). Environment variables are set in the OS, e.g. … Read more