Path: utzoo!attcan!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!tut.cis.ohio-state.edu!ucbvax!EARTH.LERC.NASA.GOV!jshoj
From: jshoj@EARTH.LERC.NASA.GOV ("Jeffery Hojnicki")
Newsgroups: comp.sys.apollo
Subject: RE: lcnode bug (was Handy Aegis Script)
Message-ID: <8912062227.AA00850@umix.cc.umich.edu>
Date: 6 Dec 89 22:15:00 GMT
Sender: daemon@ucbvax.BERKELEY.EDU
Organization: The Internet
Lines: 49

Dennis Cottel writes:

>lori@hacgate.UUCP (Lori Barfield) sends us a nifty shell script including
>some constructions like:
>
>>    /com/lcnode -b -id | /com/fpat -i -c -rm 2 ^node | read num_matches
>
>The trouble with this is that if you have an Apollo internet--for
>instance, several rings connected via Ethernet--commands like lcnode
>and lusr display only information for the local subnet.  There is no
>option on them to display all the connected nodes in the Apollo
>internetwork.
>
>This means that when you go to an internetwork, suddenly all the shell
>scripts in which you used tricks like the above to find all the nodes,
>or update all the disks in the network, don't work anymore and have to
>be modified.  And changed again when you add another subnet.  Some of
>the nice network transparency that is Apollo's strength has been
>taken away.

Although this is true for some applications, the instance sited is
easily fixed with the lcnet command.  Use lcnet to get a listing of the
connected networks and then do an lcnode on each network.  A script to do
just that follows.

Jeff Hojnicki		-- My opinions are not those of NASA
NASA LeRC
JSHOJ@earth.lerc.nasa.gov

Some of the lines in my scripts are not always the most elegant, but they
usually get the job done. 

--------------------CUT HERE------------------------------------------------
#!/com/sh
eon

# Get connected net id's

NETS := ^"lcnet -c | chpat '{????????}?*' '@1'"

# substitute appropriate options on lcnode command
# .aaaa is needed on the from node spec, but any hex code will do

for NET in ^NETS by word

      args "^NET" | read -type string THISNET
      lcnode -b -id -from ^THISNET.aaaa

endfor