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simple shell script problem
Post 91963 by Bhups on Tuesday 6th of December 2005 10:10:25 PM
12-06-2005
solution:recursively calling a function
hiiii djt0506,
got a easy solution for you
...
you neeed to write a function "function Func_validate_phone_number" which will validate the phone number entered by the user.
if the ph no is blank it will again call the same function and will ask the user to enter it again....until he enters any thing other than "enter".
if you want to validate it further (for valid numbers or no characters etc) then you need to do some more validations....which again quiet easy
.
here is my code....
function Func_validate_phone_number {
if [ -z "$ph" ]
then
echo "Phone Number cannot be blank....please re-enter."
read ph
Func_validate_phone_number "$ph"
else
echo "Thanks for giving your phone number.....bye"
fi
}
echo "Enter the phone number"
read ph
Func_validate_phone_number "$ph"
i have tested it .....it works fine
...
cya
got a easy solution for you
...you neeed to write a function "function Func_validate_phone_number" which will validate the phone number entered by the user.
if the ph no is blank it will again call the same function and will ask the user to enter it again....until he enters any thing other than "enter".
if you want to validate it further (for valid numbers or no characters etc) then you need to do some more validations....which again quiet easy
.here is my code....
function Func_validate_phone_number {
if [ -z "$ph" ]
then
echo "Phone Number cannot be blank....please re-enter."
read ph
Func_validate_phone_number "$ph"
else
echo "Thanks for giving your phone number.....bye"
fi
}
echo "Enter the phone number"
read ph
Func_validate_phone_number "$ph"
i have tested it .....it works fine
...cya
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LEARN ABOUT DEBIAN
phone
PHONE(1) General Commands Manual PHONE(1) NAME
phone - Phone utility for DECnet SYNOPSIS
phone [options] Options: [-vVh] [-s switchhook char] [initial command] DESCRIPTION
phone is a program that allows the user to communicate interactively with users on VMS systems. Two user interfaces are available: X-Win- dows (GTK+) and terminal (ncurses). If X-Windows is available and compiled into phone then it will be used unless the -n flag is present on the command line. After entering the phone command you will be presented with the phone screen which has windows for the chat and a command-line at the top. If you are not talking to another user then you can enter commands directly, otherwise you will need to precede commands with the 'switch hook' character, which defaults to the percent sign (%). You can also enter a command for phone on the shell command-line. This command will be executed when phone starts up. This makes it conve- nient to enter commands such as: 'phone answer' or 'phone marsha::chrissie' In command mode phone understands several commands: DIAL <node::user> Call a user ANSWER Answer an incoming call REJECT Reject an incoming call EXIT or QUIT Return the the command prompt HOLD Hold all callers UNHOLD Unhold callers HANGUP Hangup the phone DIR <node> Show users logged into <node> FACSIMILE <file> Send <file> HELP Show this help All commands (apart from QUIT and EXIT) can be abbreviated to 3 characters and all (really all this time) commands are case insensitive. OPTIONS
-h -? Displays help for using the command. -V Show the version of phone. -s Set the switch hook character. This is the character used to switch from talking to another user and entering PHONE commands when using the terminal interface.x -n Disables use of the X-windows user interface. Use this to run phone in an xterm. SEE ALSO
phoned(8) DECnet utilities March 26 1999 PHONE(1)