Listing 3 /opt/logins/bin/disable_interrupts

# /opt/logins/bin/disable_interrupts
trap "exit 1" 1 2 3 9 15 16 17

if [[ -o interactive ]]
then
    stty -isig
    stty intr ''
    stty quit  ''
    stty erase '^H'
    stty kill ''
    stty eof ''
    stty eol ''
    stty eol2 ''
    stty swtch ''
    stty start ''
    stty stop ''
    stty susp ''
    stty dsusp ''
    stty rprnt ''
    stty flush ''
    stty werase ''
    stty lnext ''
fi
# end Listing 3