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Full Discussion: If not equal to then loop
Top Forums Shell Programming and Scripting If not equal to then loop Post 302628601 by diham on Monday 23rd of April 2012 07:02:33 PM
Old 04-23-2012
You can get this achieved using until loop.

E.g

Code:
#!/bin/ksh
echo "Enter yes of no"
read answer

until [ $answer == y -o $answer == Y -o $answer == n -o $answer == N ]
do
echo "Sorry, Please Enter yes of no"
read answer
done

if [ $answer == y -o $answer == Y ]
then
  echo "You selected yes"
    elif [ $answer == n -o $answer == N ]
      then
          echo "You selected no"
	      elif [ $answer != y -o $answer != Y -o $answer != n -o $answer != N ]
	          then
		        echo "Invalid Option"
			      fi

Moderator's Comments:
Mod Comment Welcome to the UNIX and Linux Forums. Please use [code] tags. Video tutorial on how to use them

Last edited by Scrutinizer; 04-24-2012 at 12:41 AM..
 

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FAXANSWER(8C)															     FAXANSWER(8C)

NAME
faxanswer - tell a HylaFAX server to answer the telephone SYNOPSIS
/usr/sbin/faxanswer [ -q queue-dir ] [ -h how ] modem DESCRIPTION
faxanswer sends a message to the HylaFAX faxgetty(8C) process servicing modem telling it to answer the telephone. This is useful, for example, when a modem is used on a shared phone line and the server is configured to not normally answer the phone. The specified modem can either be the name (typically the last component of the terminal port the modem is attached to), or the full name of the associated FIFO named pipe file, e.g. ``FIFO.ttym2''. OPTIONS
-q dir Use a spooling area other than /var/spool/fax. -h Specify exactly how the phone should be answered. By default, the server process is instructed to answer the phone and accept any kind of call (voice, data, fax). Discrimination of the type of call is dependent on a modem's adaptive-answer support. The -h option can be used to force the server to answer the phone for particular type of call: one of fax, data, voice, any, extern (to force faxgetty to invoke an external application to to handle the call), or dialX (where X is a dialstring to dial before initiating a fax reception). If using dialX, the specified dialstring will likely need to end with a semicolon (``;''). FILES
/var/spool/fax default spooling area /var/spool/fax/FIFO fifo for contacting faxq Consult hylafax-server(5F) for a complete discussion of the structure and content of the spooling area. SEE ALSO
hylafax-server(5F), faxgetty(8C) May 23, 1996 FAXANSWER(8C)
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