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Can I use C system() to replace bash script?

+1 vote
287 views

I can write a C program with strings and to pass it to the system to avoid the ugly bash syntax?
My Program 

#include <stdlib.h>
#include <stdio.h>

static char command_name[2040] = {0};
int main(int argc, char** argv) {

    if ( argc != 2 ) {
        fprintf(stderr, "Provide command line argument for virtual image \n");
        exit(1);
    } else {
            sprintf(command_name, "qemu-kvm -m 1024 %s -netdev user,id=user.0 -device rtl8139,netdev=user.0",
                argv[1]);

    }

    return system(command_name);
}

Any suggestions are welcome?

posted Sep 2, 2015 by Ritika

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1 Answer

+1 vote

yes you can do that.
as per the manual of system()

int system(const char *command);

You can see that, will will accept a command as string.
Just make sure your string is a valid command. If the string provided in system() is not valid then the system will return -1.

answer Sep 14, 2015 by Arshad Khan
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