Allocate memory for a shell script in Aix at runtime-urgent critical

How to allocate memory for a shell script on aix box at the time of execution i.e at runtime
Are there any commands for AIX in specific

Thanks in Advance

Crossposter:

http://www.unix.com/unix-dummies-questions-answers/69051-allocate-memory-shell-script-runtime-urgent-critical-help.html\#post302204706