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 -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] http://learn.perl.org/