#! /bin/sh

# Example to show signal handling

trap "echo 'Don'\''t Hang me UP, baby'" HUP
trap "echo 'Didn'\''t your mummy tell you it'\''s rude to INTerrupt?'" INT
trap "echo 'Oh, dont send the TERMinator please!'" TERM
trap "echo 'Never QUIT!  Don'\''t give up!'" QUIT
trap "echo 'I still want my PIPE!'" PIPE
trap "echo 'Don'\''t ALaRM me!'" ALRM
trap "echo 'Don'\''t make me do something ILLegal!'" ILL
trap "echo 'Don'\''t TRAP me!'" TRAP
trap "echo 'Don'\''t ABoRT me!'" ABRT
trap "echo 'Don'\''t BUS me around!'" BUS
trap "echo 'Don'\''t give me that \"floating point exception\" stuff!'" FPE

echo My process ID is $$

# So how can we terminate it?

# Note:
# The colon `:' is the null statement that can be used wherever the
# syntax requires a statement.  It returns the value 0 (i.e., true).
# In this case, it gives us an infinite loop.

# Try:
# $ help :

while :
do
    sleep 1
done

# Try running this in one window, and in another window, type this:
# for ((i=0;i < 64; ++i));do if ((i==9));then let ++i;fi;echo Sending signal $i:;kill -$i 21306;sleep 1;done
# Of course, instead of 21306, put the process ID of this process.