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Can't exec ". /opt/lnpsite/nm02/scripts/setup_env": No such file or di
+rectory at ./opSet.pl line 27, <STDIN> line 1.
Cannot execute . /opt/lnpsite/nm02/scripts/setup_env: No such file or 
+directory

#!/opt/perl5/bin/perl -w

use strict;
...
my $conn = ". /opt/lnpsite/" . $instances[$selection] . "/scripts/setu
+p_env";
print "$conn\n";
exec $conn $instances[$selection] or die "Cannot execute $conn: $!\n";