Mailinglist Archive: opensuse (2162 mails)

["Nick Zeljkovic" <nzeljkovic@xxxxxxxxx>]

> # no need for expr to increment $NEWNUM
> NEWNUM=$(( ${CURNUM} + 1))
>
> If CURNUM is empty, or not a number, NEWNUM will be assigned a value of
> "1"

This whole messy code I came up with was due to bash not liking leading
zeros for calculations. If my input of $CURNUM is "001" it will calculate it
as "2" instead of "002". 

> > NUMLEN=`expr length $NEWNUM`
>
> No need for that line, unless you actually need $NUMLEN at some other
> point. If you do, you don't need to use expr:
>
> # return the length of the variable $NEWNUM
> NUMLEN=${#NEWNUM}

Thanks, expr was first thing to come on my mind to do that. I need NUMLEN so
I can know how many zeros to add to file identifier. 

> And these can be reduced to one line:
>
> FID=$(printf "%03u" "${NEW_NUM}")

Thanks! I was missing that, seems to have done the trick replacing my
checks, but something funky is going on there with numbers like 010 or
anything starting with one zero:
root@sgd1 [~/bin]# NEWNUM="015"
root@sgd1 [~/bin]# echo  $NEWNUM
015
root@sgd1 [~/bin]# printf "%03u" "${NEWNUM}"
013

Any ideas ?

--
Best regards,
Nick Zeljkovic

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