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Testing for no input.

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# 1  
Old 06-07-2005
Testing for no input.
Hi All

Can anyone let me have a easy way to test if no input was given to a standard read. I would think of using the lenght of the variable, however this seems to be a long cut.

Thx
J
# 2  
Old 06-07-2005
What shell are you using?
# 3  
Old 06-07-2005
KSH is the shell in use
# 4  
Old 06-07-2005
You can try as,

# read value in var variable
read var
if [[ -z $var ]]
then
set var=3
fi

Are you look this one?
# 5  
Old 06-07-2005
I have tried this, however it does not seem to work. I have added a line to echo the value of var however it does not default to 3.
# 6  
Old 06-07-2005
oops. try as,

#!/bin/sh
# read value in var variable
read var
if [[ -z $var ]]
then
let var=3
fi
echo $var

hth.
# 7  
Old 06-07-2005
Perfect... Thanks
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