Page 135 - slides.dvi

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Unix
–
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Case
e.g.
Unix
Signals
Similar
Signals
Cannot
Job
Study—
Problem:
to
Examples:
SIGINT
can
SIGCONT
SIGCHLD
SIGSEGV
allows
SIGTERM
SIGSTOP
:
a
SIGTTIN,
:
:
:
catch
.
a
pipes
Interprocess
.
also
control:
user
does
.
turns
be
or
hit
bg
need
the
death
processes
SIGTTOU
program
(software)
SIGKILL
to
in
to
used
Communication
closer
sent
fg.
Ctrl-C.
the
for
error.
to
reverse.
to
planning
catch
(hence
bg
interrupt.
⇒
family.
timers,
home.
kill
.
use
.
signals.
-9)
processes
window
signals.
resize,
process
tracing,
.
.
.
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