Clean trace files on Oracle 11g

Question

The partition containing my Oracle 11g installation began to fill up with trace files and when I went looking for what are these I've found this disturbing post about how to disable the trace file generation.

The two related questions I have are:

1. Can I simply delete these trace files from my FS w/o consequence ? (I know, if they apeared one should probably look at them.. but won't happen and the database has no production use whatsoever. Going to have to happen another time.)
2. What should be done to prevent it from appearing again?

Answer 1

1. Yes, it's safe to delete them.

2. If you're running on Linux, set up logrotate to compress & then delete after a set period of time. Examples of Oracle logrotate configuration can be found here.