[mark@toy ~/tmp]$ python signal1.py 12 &
[1] 809
[mark@toy ~/tmp]$ ps
  PID TTY          TIME CMD
  578 ttyp1    00:00:00 tcsh
  809 ttyp1    00:00:00 python
  810 ttyp1    00:00:00 ps
[mark@toy ~/tmp]$ kill -12 809
[mark@toy ~/tmp]$ Got signal 12 at Fri Sep  8 00:27:01 2000
kill -12 809
[mark@toy ~/tmp]$ Got signal 12 at Fri Sep  8 00:27:03 2000
kill -12 809
[mark@toy ~/tmp]$ Got signal 12 at Fri Sep  8 00:27:04 2000

[mark@toy ~/tmp]$ kill -9 809





[mark@toy ~/tmp]$ python signal2.py
Setting at Fri Sep  8 00:27:53 2000
Got alarm 14 at Fri Sep  8 00:27:58 2000
Setting at Fri Sep  8 00:27:58 2000
Got alarm 14 at Fri Sep  8 00:28:03 2000
Setting at Fri Sep  8 00:28:03 2000
Got alarm 14 at Fri Sep  8 00:28:08 2000
Setting at Fri Sep  8 00:28:08 2000