There was no hostility in my writing, you read that into it yourself. You reiterated for no reason, and now again in this post you throw the term "client" into the mix. Which client, the Oracle client, the person who pays you to write software? You're confused by someones use of terminology ("system") without context yet you repeatedly do the same. For the record I know what you're trying to say (no need to reiterate, again), you're just not saying it very well. To some extent I know what I mean. Why don't you? (and How do I post a question effectively?) would be worth reading.

'It was an attempt to acknowledge your answer and effectively say, "okay, I understand and here's why".'

So you can explain it sensibly now but not then?

'"I'm already well aware" is referring to being well aware that I need libraries to run this script. "I assume" is referring to assuming that I am running into this issue because Oracle isn't installed on the client.'

if you are "well aware that I need libraries to run this script" you also know that running the same script else where will require these libraries, so "assuming that I am running into this issue because Oracle isn't installed on the client". This is exactly the same thing. My statement was that if you're "well aware" you wouldn't be making assumptions.

Consider packaging your script and all it's dependencies before deploying to the client. pp. Again, some thought (and reading of How do I post a question effectively?) would probably have lead to a better initial question, something along the lines of:

"I have a script which uses DBD::Oracle to connect to a database and do some work, how can I deploy this on clients without having to install X,Y,Z on each target machine?"

Since mimicking an Oracle client installation won't make something which relies on an actual Oracle client work.

Update: You'd need to check the Oracle license agreement regarding redistributing parts of their client.