Linux newbie scripting help needed (timer) Post: 302584013

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Top Forums Shell Programming and Scripting Linux newbie scripting help needed (timer) Post 302584013 by Pop45398 on Thursday 22nd of December 2011 01:39:44 AM

12-22-2011

Registered User

Linux newbie scripting help needed (timer)

Hi,

Newbie to Linux needing some help with scripting, here. I've written a script that allows easily shutting down, rebooting, or exiting to terminal mode via a Dialog menu after logging out of X-server. In my .bash_profile I have startx followed by running my script, shutdownmenu.sh, and it works as I wanted but now I'd like to automatically shut down the computer in 5 seconds unless reboot or terminal mode is selected before the timeout. Is it possible to add a timer to my script to perform this? TIA. Here's my script:

Code:

#!/bin/bash
# shutdownmenu.sh - A shell script for a shutdown menu

# Store menu options selected
INPUT=/tmp/menu.sh.$$

# Clear screen then display menu box
dialog --clear \
--title "[ Shutdown Options ]" \
--menu "Use the UP/DOWN arrow keys, the first letter of the choice, \
or the number keys 1-3 to choose an option." 12 50 3 \
Shutdown_computer "" \
Restart_computer "" \
Terminal_mode "" \
2>"${INPUT}"
 
menuitem=$(<"${INPUT}")
  
# make decsion 
case $menuitem in

# delete temp file then shutdown
  Shutdown_computer) [ -f $INPUT ] && rm $INPUT; poweroff;;

# delete temp file then reboot
  Restart_computer) [ -f $INPUT ] && rm $INPUT; reboot;;

# delete temp file then exit to terminal
  Terminal_mode) [ -f $INPUT ] && rm $INPUT; clear;;

# catchall for cancel or other input
# delete temp file then exit to terminal
  *) [ -f $INPUT ] && rm $INPUT; clear;;
esac

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LEARN ABOUT MOJAVE

item_value

mitem_value(3X) 														   mitem_value(3X)

NAME

       mitem_value - set and get menu item values

SYNOPSIS

       #include <menu.h>
       int set_item_value(ITEM *item, bool value);
       bool item_value(const ITEM *item);

DESCRIPTION

       If  you	turn off the menu option O_ONEVALUE (e.g., with set_menu_opts or menu_opts_off; see menu_opts(3X)), the menu becomes multi-valued;
       that is, more than one item may simultaneously be selected.

       In a multi_valued menu, you can used set_item_value to select the given menu item (second argument TRUE) or deselect  it  (second  argument
       FALSE).

RETURN VALUE

       The function set_item_value returns one of the following:

       E_OK The routine succeeded.

       E_SYSTEM_ERROR
	    System error occurred (see errno).

       E_REQUEST_DENIED
	    The menu driver could not process the request.

SEE ALSO

       curses(3X), menu(3X).

NOTES

       The header file <menu.h> automatically includes the header file <curses.h>.

PORTABILITY

       These routines emulate the System V menu library.  They were not supported on Version 7 or BSD versions.

AUTHORS

       Juergen Pfeifer.  Manual pages and adaptation for new curses by Eric S. Raymond.

																   mitem_value(3X)