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# 1  
Old 12-14-2003
quick question?

what happens if the script doesn't get Y,y,N, or n? Will it just loop back up and ask the question again? I tried to get mine to give me another response to tell me my input was invalid, but ran into problems with it.
# 2  
Old 12-14-2003
what is your script?
# 3  
Old 12-14-2003
another question?

I'm not sure what I am missing on this, but I cannot get it to work properly. Hopefully, maybe someone can shed some light on what I have wrong!

Code:
#!/bin/sh
echo "Please type either Yes or No (Y or N)"
read Answer
if [$Answer = Y]; then
 echo "Thank you for choosing Yes!"
   else
 echo "Thank you for choosing No."
fi

I get the error message: [Y: not found

added code tags for readability --oombera

Last edited by oombera; 02-19-2004 at 02:45 AM..
# 4  
Old 12-14-2003
This article may help: http://www.ussg.iu.edu/UAU/shell/script/test.html

if test $Answer = "Y"; then
# 5  
Old 12-14-2003
Nope, this is not right, actually we need to give spaces

like for eg

if [ $Answer = Y ]

Note there are spaces after [ and ] braces. You can give Y or "Y"

Cheers
JK
# 6  
Old 12-14-2003
Whatever the script be, to me the answer lies with the person who writes it.

It all depends on the way you write the script, if you are using the while loop and looping for certain condition to be met, in your case it is Y, y, N, n, until that character is given you will loop forever,

if you are using "if" statements then if your condition in the if statement is not met, it will not get into the if part at all and execution will continue to the next step after if.

So all boils down to the way one write his/her script.

Cheers
JK
# 7  
Old 12-14-2003
you are still not being very clear on what it is you are talking about. i can assume that you mean:
you want to get a yes or no input from a user, and if the user dosnt enter a y Y n or N then the script will loop until they do or until it is killed. whenever you are looking for a certain kind of input and if that input is not given, you can use a while loop to ensure that you recieve the correct input.
ex: (watch your syntax, im typing this very loosely.)
Code:
while ($user_input != "")  # "" meaning they enter "nothing"
do
echo "please enter y for yes, or n for no"
if ($user_input == ("y" || "Y"))
do something
else if ($user_input == ("n" || "N"))
do something else
else
echo "please enter y for yes, or n for no"

etc etc.
 

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