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Thanks a lot Scrutinizer. It worked. Does it work for any number of child directories? Would you mind explaining what exactly is happening here. Regex is new to me. So what are the symbols i need to...

Hi All,
I have a directory like this: /u01/app/oracle/11gSE1/11gR203

How do i get the top level directory /u01 from this? Tried dirname and basename but dint help. I can this using echo...