On Oct 21, 4:40 am, [EMAIL PROTECTED] (John W. Krahn) wrote:
> Ariel Casas wrote:
> > Hello all,
>
> Hello,
>
>
>
> > Any time I run a unix command where I initiate a variable > use the
> > variable as an arg in the unix command > pipe it to another unix
> > command, I get an error. This is the error I get:
>
> > ---------------------------------------
> > ./test.1.pl
> > Use of uninitialized value in concatenation (.) or string at ./test.
> > 1.pl line 8.
> > sh: syntax error at line 1: `|' unexpected
> > 512
> > ---------------------------------------
>
> > -----Here is the contents of the perl script--------
>
> > #!/usr/bin/perl -w
>
> The first three lines *should* be:
>
> #!/usr/bin/perl
> use warnings;
> use strict;
>
> > check_LANon () ;
>
> You call the subroutine check_LANon() but you haven't assigned anything
> to $utadm_l yet.
>
> > $utadm_l = "/opt/SUNWut/sbin/utadm -l" ;
>
> > sub check_LANon {
> > $LANstat = system(" $utadm_l | grep On") ;
>
> What information did you expect that system() would return?
>
> > print "$LANstat\n" ;
> > }
>
> > ------------------------------------------------------------
>
> > How can I run this succesfuly? I have other scripts that I need to do
> > this with as well, but I can't since I always get this error. If I
> > substitute $utadm_l with the actual command, it works fine. Only
> > barfs when I use a variable.
>
> John
> --
> Perl isn't a toolbox, but a small machine shop where you
> can special-order certain sorts of tools at low cost and
> in short order. -- Larry Wall
I think you need to use backtick for $utadm_l = `/opt/SUNWut/sbin/
utadm -l`
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