determining port id

[Jonathan I. Kamens]

  (Note: "Followup-To: comp.unix.questions, george at wciu.edu" is not valid for
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In article <1991Mar19.171708.18628 at wciu.EDU>, george at wciu.wciu.edu (George Peavy) writes:
|> What I have so far:  I'm using Bourne shell on AT&T Sys V 3.0 running on a 
|> Unisys 6000/51 platform.  I can get the port id with,
|> 
|> 	who am i | awk '{ print $2 }'
|> 
|> The question is, how do I get this information into a place where I can
|> test the value?  Is there a simpler way than my use of awk?

  If you really want to use awk, then you can use backquotes to evaluate the
command above and assign its output to a variable, e.g.

	tty=`who am i | awk '{ print $2 }'`

However, it seems to me that the "tty" command will give you the same
information, and only requires one process:

	tty=`tty`

The output of tty will have "/dev/" at the front of it (assuming that your
devices are in /dev :-), but you can cope with that rather trivially.

-- 
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