Hi all,

Please help me decide this problem. I have a converter application getting its parameters by specified format. Ie: -date2007-02-14

Also I have a files named yyyyMMdd.rar format. So how do I convert the file name to it.
Input:
20070214.rar
Output:
-date2007-02-14

I wrote the following scripts but can't know how to concat them.

string=20070214.rar
echo $string | cut -c1-4
echo $string | cut -c5-6
echo $string | cut -c7-8