03-12-2015
You clear id and then echo > ${id}.txt ? That will create an empty .txt file...
In general, you do nested / recursive calls to functions (like calling menu from within a function that itself is called by menu). This is OK if you know exactly what you do and if you have a "conditional break" - the base case - in there somewhere. But that seems not to be the case, so I'd propose you take a step back, scribble a layout of your functions and respective function calls onto a scrap sheet and then try to implement that.
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LEARN ABOUT DEBIAN
install-menu
install-menu(1) Debian GNU/Linux manual install-menu(1)
NAME
install-menu - Process a menu method and generate the menu files for a window manager or a menu-aware application.
DESCRIPTION
update-menus(1) computes the list of menu entries and passes it in turn to the menu methods in /etc/menu-methods/. The task of a menu meth-
ods is to generate menus for a specific window manager. install-menu provides a generic and customizable way to do that. The documentation
of the install-menu definition language is available in the Debian Menu manual, a local copy being available in /usr/share/doc/menu/html.
SYNOPSIS
install-menu [-vh] [--remove] <menu-method>
Read menu entries from stdin in update-menus --stdout format and generate menu files using the specified menu-method.
Normally used in menu method scripts as #! /usr/bin/install-menu.
OPTIONS
-h,--help
Show the help message and exit.
--remove
Remove the menu files instead of generating them.
-v,--verbose
Output messages about what the program is doing.
COPYING
install-menu is distributed under the term of the GNU General Public License version 2, or (at your option) any later version.
AUTHOR
Written by Joost Witteveen <joostje@debian.org>. Now maintained by Bill Allombert <ballombe@debian.org>.
SEE ALSO
update-menus(1), menufile(5), /usr/share/doc/menu/html
Debian Project 28 November 2005 install-menu(1)