While Loop Errors


 
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# 1  
While Loop Errors

I have the following chunk of code...

Code:
while [ $answer != X || $answer != x ]

when I try to execute this script, it outputs an error "test: ] missing"

Is there a syntax error here?

Last edited by Scrutinizer; 05-07-2012 at 02:03 PM.. Reason: code tags
# 2  
Code:
while [ "$answer" != "x" ] || [ "$answer" != "X" ]

..except that this is a logic error and will loop forever. One or the other conditions will always evaluate to true and keep the loop going.

Try && instead of ||
# 3  
Even with substituting the || for &&, it gives me the same error message

test: ] missing
# 4  
Please post your entire script, then.
# 5  
Quote:
Originally Posted by itech4814
Even with substituting the || for &&, it gives me the same error message

test: ] missing
Did you also notice the double quotes and the extra square brackets that Corona688 introduced?
# 6  
Code:
answer=x
while [ $answer != X && $answer != x ]
do
echo "Phone Book"
echo "Phone Company"
echo "Company Number"
echo ""
echo ""
echo "A - Add a new line in the phone book"
echo "D - Delete a line from the phone book"
echo "M - Modify a line in the phone book"
echo "I - Inquire on a name in the phone book"
echo "X - Exit"
echo ""
echo ""
echo "What would you like to do? \c"
read answer
case $answer in



That's all i have so far...

Last edited by Corona688; 05-07-2012 at 02:01 PM..
# 7  
Try the answer I actually gave you.
 

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