popen.c

在linux中

#include <stdlib.h>
#include <sys/wait.h>
#include <stdio.h>

int main()
{
FILE *fresult;
char recvbuf[]="ls ";
char sendbuf[256];
memset(sendbuf,'\0',sizeof(sendbuf));
if( (fresult = popen(recvbuf,"r")) == NULL)
{
printf("popen error\n");
}
else 
{
//fgets(sendbuf,sizeof(sendbuf),fresult);
fread(sendbuf,sizeof(sendbuf),sizeof(sendbuf),fresult);
printf("result : %s\n",sendbuf);


}

}