Utility to read/update listner.ora

Hi,

I am searching for some utilitie(s) which can read/update listener.ora file. Oracle provides some GUI utilities which read/update listener.ora. But I am looking for some command line based utility which I can fork from my application to update listener.ora.
I am using Oracle 9i on Solaris.

Thanks in advance,
- Bharat

vi

Any text editor will do, although using vi is the more manly way of doing it. :)

doing (read screwing ) it as well, listener.ora is a space sensitive file as well and the listener complains if it doesn't find the file in the format it wants it.

Use vi if you are good at it, otherwise use the notepad on your desktop. I am not using Solaris anymore but am sure there was one on there when i left it.

I think I did not explain my problem well.
I need some way so that I can read/update the listener.ora programmatically from my appliucation. So you people know about some parser utility which can do it.