Got it!! Re:bash character substitution? Need help

[Madison Kelly]

Hi again Grant,

   No worries about replying now, I figured out a way to make it work. 
Here is what I did (for the archives)...

#!/bin/bash
X='00:11:22:33:44:55>21,53,80-85'
for rule in ${X} ; do
	echo "Rule: "${X}
	echo "$rule" | {
		IFS='>' read mac port
		echo "MAC: "$mac" Ports: "$port
		echo "$port" | {
			IFS=','
			for num in ${port} ; do
				echo "Individual Port: "$num
				echo "$num" | {
					IFS='-' read fsp lsp
					if [ "${lsp}" != "" ] ; then
						echo "Port Range: "${fsp}":"${lsp}
					else
						echo "Single Port: "${fsp}
					fi
				}
			done
		}
	}
done

   Many thanks again!!

Madison

Grant Cullen wrote:
> Madison, the following will give the basic parsing.
> 
> Good luck
> 
> #!/bin/bash
> X='00:11:22:33:44:55>21,53,80-85'
> MAC=${X,1,17}
> [ ${#X} -gt 18 ] &&
>  {
>   # we have ports - length greater than 18
>   IFS=','
>   for PORT in ${x:18}
>    do
>     echo "iptable entry with port " $PORT
>    done
>  } ||
>  {
>   # no ports
>   echo "iptable entry without ports"
>  }
> 
> Grant Cullen
> JADALL Consulting Ltd.
> grant.cullen-rieW9WUcm8FFJ04o6PK0Fg at public.gmane.org
> 416-706-4447


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