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From: arisawa@ar.aichi-u.ac.jp
Subject: Re: [9fans] Environment variable
Date: Wed,  9 Aug 2006 21:58:51 +0900
To: Fans of the OS Plan 9 from Bell Labs <9fans@cse.psu.edu>
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* Martin Neubauer (m.ne@gmx.net) wrote:

>>
>> I see what you are trying to accomplish. Probably
>> b=$"`{cat /env/a}
>> will do.
>>
>
> And iterating a bit further, I found this doesn't work with out a
> temp:
> tmp=`{cat /env/a}
> b=$"tmp
>

term% a=()
term% xd -c /env/c
0000000   a  l  i  c  e 00
0000006
term% c=''		# null string
term% cp /env/c /env/a
term% xd -c /env/a
0000000  00
0000001
term% b=$`{cat /env/a}
rc: variable name not singleton!
term% b=$"`{cat /env/a}
rc: variable name not singleton!
term%
term%
term% t=`{cat /env/a}
term% xd -c /env/t
0000000
0000000
term% b=$t
term% xd -c /env/t
0000000
0000000
term% b=$"t
term% xd -c /env/t
0000000
0000000
term%

NG!