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Signal Handling Defining a Signal Handler

A signal handler is defined by assigning to the built-in %SIG hash-table variable

• Each %SIG key defines the signal number to catch

• Each %SIG value is the subroutine which gets called

For example

sub MySigInt { die "Sig INT caught!"; }
$SIG{INT} = \&MySigInt;
print "Running program...\n";
while(1) {}