Help with KSH Script Variables

[Saint Nick]

This doesn't work...I don't know why!

#! /usr/bin/ksh
month=$1        
        if [ $month -lt 10 ] ; then
            month = "0${month}"
            #echo $month
        else
            echo $month
        fi

It is essentially a bit of code to add zeros to the beginning of any number less than 10. Everything else aside, why does it give me this error?

./test[4]: month:  not found

 

[Ken g6]

My guess: you shouldn't put spaces around the "=".

 

[Saint Nick]

Well that is silly...the rest of my script has variables and are assigned successfully even with the spaces present. I wonder what gives? Oh well...thanks for the help Ken!

 

[Crusty]

http://docstore.mik.ua/orelly/unix/ksh/ch06_02.htm has all sorts of info on the operators allowed in ksh and goes into some detail about why the spaces screw things up.

 

[Saint Nick]

So is there some sort of best practice with scripting then in regards to the operators? Should you just always eliminate spaces?

Thanks for the link Crusty