On Mon, 8 May 2000, Minh Van wrote:
>
> what's the difference between elif & else in shell scripts ? they seem the
> same to me.
else says to do something if the if condition was false. elif allows
you to test for another condition which might be completly unrelated
to the first condition. Consider the following pieces of
code with identical behaviour
if some condition is true
then
act on that condition
elif some other condition is true
then
act on the other condition
elif yet another condition is true
then
act on the third condition
else
do something if none of the above were true
fi
if some condition is true
then
act on that condition
else
if some other condition is true
then
act on the other condition
else
if yet another condition is true
then
act on the third condition
else
do something if none of the above were true
fi
fi
fi
Usage of either method is a matter of your own personal coding style.
I used to favour method 2 but I'm gradually moving towards using
elif.
Regards
Peter
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