The built-in menu command interrupt enables or disables interrupts when
executing a group of commands. The UNIX trap command can be used to ignore
interrupts as well. When interrupts are to be ignored, it is suggested that
the built-in interrupt command be used for menufile portability.
Built-in version
UNIX shell version
interrupt expression
trap "" 2
or
interrupt (expression)
For more information about menu's built-in interrupt command and interrupt function, see C/Base Reference Manual Chapter 8, Creating Menus.