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Full Discussion: Ignore special characters in loop
Top Forums Shell Programming and Scripting Ignore special characters in loop Post 302926829 by Devaraj A on Thursday 27th of November 2014 12:48:51 PM
Old 11-27-2014
Ignore special characters in loop
Hi All,

Code:
select app from the menu:  ABC DEF GHI JKL ALL  # ALL will select all the apps in the menu  echo "Enter your option" read option;  if [ ${option} = "ALL" ] then      <execute the below command> elif [ ${option} = "option" ]     # option is the 1 selection from menu...not ALL     <execute the below command> else    echo wrong option."" fi

question:
* id user enters A* or AB?...... the scripts executes at
Code:
elif

.
i want to avoid special characters in if loop...below is the syntax.....but i want to know is there any other where i can eliminate all Special chars with out using below format.
Code:
if [ $option != "*" ] || [ $option != "?" ] || [ $option != "&" ]

Thank you in Advance!
 

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LEARN ABOUT MOJAVE

menu_opts

menu_opts(3X)															     menu_opts(3X)

NAME

       menu_opts - set and get menu options

SYNOPSIS

       #include <menu.h>
       int set_menu_opts(MENU *menu, Menu_Options opts);
       int menu_opts_on(MENU *menu, Menu_Options opts);
       int menu_opts_off(MENU *menu, Menu_Options opts);
       Menu_Options menu_opts(const MENU *menu);

DESCRIPTION

       The function set_menu_opts sets all the given menu's option bits (menu option bits may be logically-OR'ed together).

       The function menu_opts_on turns on the given option bits, and leaves others alone.

       The function menu_opts_off turns off the given option bits, and leaves others alone.

       The function menu_opts returns the menu's current option bits.

       The following options are defined (all are on by default):

       O_ONEVALUE
	    Only one item can be selected for this menu.

       O_SHOWDESC
	    Display the item descriptions when the menu is posted.

       O_ROWMAJOR
	    Display the menu in row-major order.

       O_IGNORECASE
	    Ignore the case when pattern-matching.

       O_SHOWMATCH
	    Move the cursor to within the item name while pattern-matching.

       O_NONCYCLIC
	    Don't wrap around next-item and previous-item, requests to the other end of the menu.

RETURN VALUE

       Except for menu_opts, each routine returns one of the following:

       E_OK The routine succeeded.

       E_SYSTEM_ERROR
	    System error occurred (see errno).

       E_POSTED
	    The menu is already posted.

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.

																     menu_opts(3X)
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