Advanced shell programming
Overview
Sending and trapping
signals
Signal names
Functions
Aliases
The 'exec' mechanism
The 'eval' mechanism
Sending data across networks
Sending
printable characters
Splitting
files
Makefiles
Safe
programming
Setting up a terminal
More on
files
Miscellaneous utilities
Summary
Exercises
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Signal names
SIGEXIT |
trapped by all shells immediately before exit |
SIGHUP |
hangup - sent to child process when parent dies |
SIGINT |
Sent by ctrl-C |
SIGQUIT |
Sent by ctrl-\and may coredump |
SIGKILL |
'Sure kill' signal - cannot be trapped |
SIGALRM |
'Alarm' - used by e.g. sleep |
SIGTERM |
The 'default' signal used by kill |
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