C语言获取命令行输出

原文章链接 http://blog.youkuaiyun.com/itisyang/article/details/53190565

int cmd(char* cmd, char* result)
{
    char buffer[10240];
    FILE* pipe = popen(cmd, "r");
    if (!pipe)
    return -1;
    while(!feof(pipe)) {
        if(fgets(buffer, 4096, pipe)){
            strcat(result, buffer);
        }
    }
    pclose(pipe);
    return 0;
}

int main()
{
    char buffer[10240]="";
    if(cmd("ps", buffer) == 0)
        printf("cmd ps output : %s\n", buffer);

    return 0;
}