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Full Discussion: while - loop does not work
Top Forums Shell Programming and Scripting while - loop does not work Post 302406910 by malcomex999 on Wednesday 24th of March 2010 07:04:42 AM
Old 03-24-2010
ofcourse, the while loop will not end because it always return true.
Assume, you entered "n" after it asks you to type y or n.
Then it compares that if decision is not "y", it returns true because decision is "n"(not y) and it checks the next one if decision is not "n", it returns false because it is "n". So either way, you entered y or n, it returns true because

Quote:
True OR True = True
True OR False = True
False OR True = True
False OR False = False
i hope you get what i mean.
 

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LEARN ABOUT LINUX

suspend

suspend(1)                                                         User Commands                                                        suspend(1)

NAME

       suspend - shell built-in function to halt the current shell

SYNOPSIS

   sh
       suspend

   csh
       suspend

   ksh
       suspend

DESCRIPTION

   sh
       Stops the execution of the current shell (but not if it is the login shell).

   csh
       Stop the shell in its tracks, much as if it had been sent a stop signal with ^Z. This is most often used to stop shells started by su.

   ksh
       Stops the execution of the current shell (but not if it is the login shell).

ATTRIBUTES

       See attributes(5) for descriptions of the following attributes:

       +-----------------------------+-----------------------------+
       |      ATTRIBUTE TYPE         |      ATTRIBUTE VALUE        |
       +-----------------------------+-----------------------------+
       |Availability                 |SUNWcsu                      |
       +-----------------------------+-----------------------------+

SEE ALSO

       csh(1), kill(1), ksh(1), sh(1), su(1M), attributes(5)

SunOS 5.10                                                          15 Apr 1994                                                         suspend(1)
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