Shell Programming and Scripting

I am looking for a command that will show me the memory, CPU and I/O usage of multiple Process IDs

ps v <pid> shows for one process ID

is there something similar for multiple Process Ids?

---------- Post updated at 05:43 PM ---------- Previous update was at 05:41 PM ----------

No I am looking for a command like ps v <pid>

How about this?

Code:

ps -elf | egrep "PID1|PID2|PID3"

If you do not have egrep on your system check if grep supports -E flag.

Thanks for the response but, that did not work for me or maybe I am doing something wrong.
I am relatively new to unix scripting and am attempting to write a script that will display the memory, CPU and I/O usage and redirect it to a excel file.
Here is what I currently have:

Code:

#!/bin/sh
#
ps -fu fsgapp | grep -v grep | grep java | awk '{print $2,$(NF-1),$NF}' > /tmp/a1
for i in `cat /tmp/a1`
do
  ps v $i
done

The first two commands give me what I am looking to get however, the ps v $i only shows the stats for the first pid captured from the first ps command.
Is there a way to get that information for all the pids and redierct to an excel file?
please help.
Thanks