signal
action
siglist
[command
]Set the action to take when a Unix signal is received.
The siglist
parameter lists one or
more signal names or numbers. Parameter
action
indicates the action to
take, as described in the following:
Take system default action.
Ignore the signal.
Generate a catchable Tcl error.
Execute command indicated by
command
parameter.
Return current settings for the specified signals as a keyed list.
Set signals from a keyed list in the format returned by get.
Block signals from being received.
Allow the specified signal to be received.