From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <eaa228acf925b7ef4371a2540284b426@quintile.net>
From: "Steve Simon" <steve@quintile.net>
Date: Thu, 10 May 2007 09:18:23 +0100
To: 9fans@cse.psu.edu
Subject: Re: [9fans] strange behavior?
In-Reply-To: <ACCF003CBA3D09458207DB0CB86AD17D481B45@XMAIL.asuch.cas.cz>
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> ##script:
>  T = 'Eptatretus burgeri'
>  echo  $T
>  awk '/'^$T^'/' all.uniq 
>  echo '++++++++++++++++'
>  T=`{awk 'NR== '23' ' SpeciesList}
>  echo  $T
>  awk '/'^$T^'/' all.uniq 
> ## result:
> Eptatretus burgeri
> Eptatretus burgeri (complete) Metazoa; Chordata; Craniata; Hyperotreti; Myxiniformes; Myxinidae; Eptatretinae; Eptatretus. NC_002807 cox1, -S(nga), D, cox2, K, atp8, atp6, cox3, G, nad3, R, nad4L, nad4, H, S(nct), L(nag), nad5, -nad6, -E, cob, T, -P, F, rrnS, V, rrnL, L(yaa), nad1, I, -Q, M, nad2, W, -A, -N, -C, -Y     
> ++++++++++++++++
> Eptatretus burgeri
> awk: can't open file /burgeri/
>  source line 1
> rc 117587: awk 117593: 2

I think this is a problem with rc treating $T as a list, and you need
a list flattening operator (double quote).

Perhaps what you need is 

awk '/'^$"T^'/' all.uniq 

[unsure as hasn't had any coffee yet]

-Steve