看看为进程bash分配了多少虚拟内存

I have written a script which assigns virtual or "simulated" memory to a process that I have created. What I want to know is, how can I then list how much memory the process has? I want it to return "process has x mbs" if I have assigned some memory or "process has currently no assigned memory" if I haven't assigned any memory.I have written a script which assigns virtual o