How to impose memory limits on a shell script?
You can limit the memory usage by a Bash Script, doing the follow.
Limit the memory usage by kb (2GB in this example):
ulimit -m 2048000
Limit virtual memory usage:
ulimit -v 2048000
Set virtual memory limit to be hard limit, so that process will be killed when exceeding this limit:
ulimit -H -v
I think this can do what you want.