Re: shell magic/info

["Oliver Elphick" <olly@lfix.co.uk>]

"Sibuyas Bombay" wrote:
  >Hello everyone !
  >  I've been dirtying my hands on how interactive shell programs like smailco
      >nfig,
  >bindconfig (those who ask the user for a choice and execute something for th
      >at
  >choice).
  >  They always start with that usual executable magic #!/bin/sh .  Does anyon
      >e
  >know of any documentation w/s can guide us how to write custom programs ?  M
      >y
  >concern is actually to write a program that will prompt a user 4 or 5 inputs
  >only, (pon, poff, elm, quit) then make it as her default login shell, that w
      >ay,
  >i dont give her a fully interactive shell (and a potential security hole for
  >my feline friend).
  >  Thanks a lot in advance.
  >Sib
  >
  >INXS: if not at all that busy, i really would like a template script, w/ onl
      >y
  >2 choices, a pointer on where/how do i start.
  >
 
Make this script executable and make it the login shell (7th field of the line
in /etc/passwd); when it exits, the user will log out:

========================= begin =======================
#! /bin/sh
# Sample menu script
#

while true
do
	echo -n "

Here are your choices -

  1. Change your password
  2. See today's date
  3. Log off

Which do you want? "

	x=
	while [ -z "$x" ]
	do
		read x
	done

	echo

	case $x in
		1)
			passwd
			;;
		2)
			date
			;;
		3)
			exit 0
			;;
		*)
			echo -e "$x is a bad choice!\a"
			;;
	esac
done
========================== end ========================

-- 
Oliver Elphick                                Oliver.Elphick@lfix.co.uk
Isle of Wight                              http://www.lfix.co.uk/oliver
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