Can I trap signals in R?

Question

In bash I can trap SIGINT, SIGKILL, SIGTERM, and so on. That allows me to do different things depending how the program was unexpected

Answer 1

Expanding a bit on my comment which OP asked me to post as an answer

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The help file for conditions has the description

These functions provide a mechanism for handling unusual conditions, including errors and warnings.

There are many handling functions explained in the file, with examples. So I suggest starting with

help(conditions)
## and
example(conditions)

Additionally, tools::assertCondition might be worth a look too. It is linked at the bottom of the conditions documentation.