I thought I had filename on clipboard when it actually was java code.
I accidentally pasted java code in terminal and trying to figure out what might have happened and if there is any other damage done to my desktop because of special symbols ( <, >, | etc) writing files in unwanted locations.
Essentially my machine froze and mouse pointer changed. My work directory got lot of new files of type "PostScript document text conforming DSC level 3.0, Level 1" This seems to be result of unwanted execution of /usr/bin/import command.
Ctrl-c did not help here at all. After it has executed full java file line by line, it came back to prompt after 5 minutes or so - long time.
I now find this funny, but that was not the case when I had bunch of uncommitted files and machine not responding.