[ILUG] POTD reminder

[kevin lyda]

On Mon, Dec 13, 2004 at 04:07:38PM +0000, P at draigBrady.com wrote:
> Shell conditionals
> 
> if [ "$str" = "1" ] || [ "$int" -eq "1" ]; then
>      echo "str or int is 1"
> elif [ "$int" -lt "10" ] && [ -e "file" ]; then
>      echo "int less than 10 and file exists"
> fi

it's better if you do the following:

    if [ X"$str" = X"1" ] || [ "$int" -eq "1" ]; then
        echo "str or int is 1"
    elif [ "$int" -lt "10" ] && [ -e "file" ]; then
        echo "int less than 10 and file exists"
    fi

that way if $str begins with a - it won't annoy test.

kevin

-- 
kevin lyda                    Every gun that is made, every warship launched,
kevin at ie.suberic.net          every rocket fired signifies, in the final
http://ie.suberic.net/~kevin/ sense, a theft from those who hunger and are
Dwight Eisenhower, 1953 ----> not fed, those who are cold and are not clothed.