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Full Discussion: Case inside While read File
Top Forums UNIX for Beginners Questions & Answers Case inside While read File Post 303008130 by Scott on Monday 27th of November 2017 02:55:42 PM
Old 11-27-2017
Your second read is reading from the same descriptor as the first, meaning both reads are reading your input file, meaning that your case will never get the answer you are looking for and the inner while-loop will never break (you can test that by adding a line to your input file with only an n in it, at which point the script will exit).

You need to change one of the reads to read from a different descriptor. There's a number of ways to do this. One way, for example, is to change your second read to:
Code:
read -r -p "Do you wish to continue?[y/n]" yn < /dev/tty

 

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LEARN ABOUT DEBIAN

poll_mouse

poll_mouse(3alleg4)						  Allegro manual					       poll_mouse(3alleg4)

NAME

       poll_mouse - Polls the mouse. Allegro game programming library.

SYNOPSIS

       #include <allegro.h>

       int poll_mouse();

DESCRIPTION

       Wherever possible, Allegro will read the mouse input asynchronously (ie.  from inside an interrupt handler), but on some platforms that may
       not be possible, in which case you must call this routine at regular intervals to update the mouse state variables. To help you	test  your
       mouse  polling  code  even  if  you are programming on a platform that doesn't require it, after the first time that you call this function
       Allegro will switch into polling mode, so from that point onwards you will have to call this routine in order to get  any  mouse  input	at
       all, regardless of whether the current driver actually needs to be polled or not.

RETURN VALUE

       Returns zero on success, or a negative number on failure (ie. no mouse driver installed).

SEE ALSO

       mouse_needs_poll(3alleg4),   install_mouse(3alleg4),   mouse_x(3alleg4),   exlights(3alleg4),   exmouse(3alleg4),   exshade(3alleg4),  exs-
       pline(3alleg4), extrans(3alleg4)

Allegro 							   version 4.4.2					       poll_mouse(3alleg4)
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