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Full Discussion: Help with infinite loop problem
Homework and Emergencies Homework & Coursework Questions Help with infinite loop problem Post 302548635 by Ren_kun on Friday 19th of August 2011 01:11:52 AM
Old 08-19-2011
Help with infinite loop problem
1. The problem statement, all variables and given/known data:
My problem is an infinite loop when i press any other key other then Y or y in the while loop. what i want it to do is return to the normal script outside of it if pressing N or n or keep asking the same question if its any other button. Perhaps my knowledge and understanding of loops is inaccurate. But i have made it very similar to the lecture shown ones and it isnt working out very well. Thanks in advance.

2. Relevant commands, code, scripts, algorithms:

P.S. I am using cygwin in windows to do this script.

3. The attempts at a solution (include all code and scripts):
Code:
"4")
clear
echo Would you like to exit? [y/n]?
read answer
while [ "$answer" != "Y" ] || [ "$answer" != "y" ]; do
        case "$answer" in
        "Y" | "y")  clear; exit ;;
        "N" | "n")
                echo Press enter to continue
                read a ;;
        *)
                echo Invalid input
                echo Press enter to continue...
                read a
                ;;
        esac
        if [ $answer != "Y" ] || [ "$answer" != "y" ]; then
        echo "Press enter to continue..."
        read A
        fi




done
;;

4. Insearch: (University of Technology Sydney), Sydney NSW, Australia, James Hu (web systems), www(dot)insearch.edu.au/default.aspx?ArticleID=430

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).
 

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LEARN ABOUT DEBIAN

srvsearch

RULI(1) 						      General Commands Manual							   RULI(1)

NAME

       srvsearch, sync_srvsearch, smtpsearch, sync_smtpsearch, httpsearch, sync_httpsearch, ruli-getaddrinfo
       - Sample programs for RULI Library (RFC 2782)

SYNOPSIS

       echo _service._protocol.nongnu.org | ruli-getaddrinfo
       echo _service._protocol.nongnu.org | srvsearch [ options ]
       echo _service._protocol.nongnu.org | sync_srvsearch [ options ]
       echo nongnu.org | smtpsearch [ options ]
       echo nongnu.org | sync_smtpsearch [ options ]
       echo nongnu.org | httpsearch [ options ]
       echo nongnu.org | sync_httpsearch [ options ]

DESCRIPTION

       This manual page documents briefly sample programs for the ruli(3) library.

       ruli is a library aimed at querying DNS SRV resource records.

OPTIONS

       For http searches, one can force the port number by specifying it as the first option.

       search Use the resolver search list defined in '/etc/resolv.conf'.

       need_ra
	      Require RA (Recursion Available) bit in the name server answer.

       noinet Don't fetch IPv4 addresses.

       noinet6
	      Don't fetch IPv6 addresses.

       uri_port
	      Assume the specified default port was forced by the user-supplied URI.

       nowalk Don't search addresses missing from the name server answer.

       nofall Don't launch fallback queries for addresses, if the SRV query fails.

       nosort6
	      Don't sort the address list to give preference to IPv6 addresses.

EXAMPLES

       echo _telnet._tcp.nongnu.org | ruli-getaddrinfo
       echo _smtp._tcp.nongnu.org | srvsearch search
       echo _smtp._tcp.nongnu.org | sync_srvsearch search noinet6
       echo nongnu.org | smtpsearch noinet
       echo nongnu.org | sync_smtpsearch nowalk nofall
       echo nongnu.org | httpsearch noinet6
       echo nongnu.org | sync_httpsearch 80

SEE ALSO

       ruli(3)

AUTHOR

       This manual page was written by Everton da Silva Marques <evertonsm@yahoo.com.br>.

								 October 08, 2004							   RULI(1)
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