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Full Discussion: Shell scripting/menu
Homework and Emergencies Homework & Coursework Questions Shell scripting/menu Post 302802571 by Jagst3r21 on Friday 3rd of May 2013 10:55:48 PM
Old 05-03-2013
Shell scripting/menu
Use and complete the template provided. The entire template must be completed. If you don't, your post may be deleted!

1. The problem statement, all variables and given/known data:

Write a shell menu program that will:
a. copy a file to a designated directory
b. tell you if a specified user is logged in.
c. display the details of a specified file
d. list the contents of a specified directory

Check for input errors, issues an error message and continue until the exit option is chosen.

2. Relevant commands, code, scripts, algorithms:

Shell scripting

3. The attempts at a solution (include all code and scripts):

Code:
# Use of a case statement to offer a 5 item menu
echo “  Menu\n
1. Copy a file to a designated directory\n
2. Check whether a specified user is logged in\n
3. Display the details of a specified file\n
4. List the contents of a specified directory\n
5. Quit to Unix\nEnter your option #: \c”
read choice
case “$choice” in
1)	cp file $HOME
2)	who | grep 'name'
3)      ls -l file
4)      ls directory
5)      exit ;;
*)	echo “Invalid option”   # ;; not needed for last option
esac

A couple things:

1) Is this a step in the right direction? And could someone please test it just to see if it functions?

2) How would I make the program more portable so that the user can enter the name of a file for option one or enter the name of the person for option 2. What I mean is, how do you make it so you have variables for the options instead of hardcoded ones?

I need to also turn in a printout of the program listing or something too, whatever that means(?)

Thanks.

4. Complete Name of School (University), City (State), Country, Name of Professor, and Course Number (Link to Course):

Brookdale Community College - Lincroft, New Jersey - United States - Dr. Rick Bournique- COMP 145


Note: Without school/professor/course information, you will be banned if you post here! You must complete the entire template (not just parts of it).
Last edited by vbe; 05-04-2013 at 11:01 AM..
 

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LEARN ABOUT SUSE

post_menu

post(3MENU)															       post(3MENU)

NAME

       post - write or erase menus from associated subwindows

SYNOPSIS

       #include <menu.h>
       int post_menu(MENU *menu);
       int unpost_menu(MENU *menu);

DESCRIPTION

       The  function  post_menu  displays  a  menu to its associated subwindow.  To trigger physical display of the subwindow, use refresh or some
       equivalent curses routine (the implicit doupdate triggered by an curses input request will do). post_menu resets the  selection	status	of
       all items.

       The function unpost_menu erases menu from its associated subwindow.

RETURN VALUE

       These routines return one of the following:

       E_OK The routine succeeded.

       E_SYSTEM_ERROR
	    System error occurred (see errno).

       E_BAD_ARGUMENT
	    Routine detected an incorrect or out-of-range argument.

       E_POSTED
	    The menu has already been posted.

       E_BAD_STATE
	    Routine was called from an initialization or termination function.

       E_NO_ROOM
	    Menu is too large for its window. You should consider to use set_menu_format() to solve the problem.

       E_NOT_POSTED
	    The menu has not been posted.

       E_NOT_CONNECTED
	    No items are connected to the menu.

SEE ALSO

       ncurses(3NCURSES), menu(3MENU).

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.

																       post(3MENU)
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