It's been a long time since I did a big project to convert AIX scripts to RHEL. I do remember having some trouble with echo statements not expanding the backslash characters (like \n) for example:

Code:

echo "\nStop Service now: [y]  \c"

I believe this was related to /bin/sh just being a symbolic link to bash but running in "strict compatibility" mode. However, we found that turning on shopt -s xpg_echo at the top of the script was usually enough to get the echo statements working as they used to and much less time consuming than converting everything to use printf.

Also watch out for anything that directly interacts with the /dev device files. as almost certainly they will be named differently that the AIX devices. Think here about accessing DVD/CD device or backup tape drives or changers.

Our backup scripts needed to be re-written as they used commands like sysback and tape to interact with tape libraries/changers and things were just too different under AIX, we decided rather than redevelop this it was easier to implement a commercial backup solution (I think it was CommVault), this came with an agent that managed most of the I/O and we only need to develop little stub scripts that were called to do things like stop the database or do an on-line backup to a file.