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How to ask a question to a user in ksh

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# 1  
Old 03-15-2004
How to ask a question to a user in ksh
Hello,
I am writing a script in ksh(for HP Unix)where a user must answer to a question . So I want to know kow to test if the user do not answer , so if he enter "REturn".

I don't know how to test "space characters" or "empty characters

Thanks for your help
# 2  
Old 03-15-2004
You can do stuff like this...

Code:
print -n "Enter your name - "
read name
if [[ -z $name ]] ; then
       print I guess you don\\'t know your name
       name="bozo"
fi

# 3  
Old 03-15-2004
From man ksh...
Quote:
-z string True if length of string is zero.
This is also true for a string that is "space characters" because they are internal field separators.

Example
Code:
REPLY=""
while [[ -z $REPLY ]]
do
   read REPLY?"Enter field: "
   if [[ -z $REPLY ]]
   then
      echo Error: field is mandatory
   fi
done

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