Discovered by accident:
If your R session has become unresponsive to escape presses etcetera,
you can try this.
Open a terminal window, run the command
ps -ax | grep R.app
Note the process ID number in the first column. Say it's 1234.
Then run
kill -4 1234
The key is that the signal you are sending to R.app is "4".
The Console will now ask you how you want to exit.
This at a minimum gives you a chance to save any window content,
since it's a nicely threaded application.
Once (of 2 times) I could also cancel out of the dialog and resume the
session.
Roger Day
University of Pittsburgh Departments of Biomedical Informatics and
Biostatistics
University of Pittsburgh Cancer Institute
University of Pittsburgh Molecular Medicine Institute
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cell phone 412-609-3918
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