On 21/01/2011 05:50, Erez Schatz wrote:
On 20 January 2011 15:38, Eyal B.<ewinst...@gmail.com> wrote:I'm getting an error on the line where I should use the TTL variable - and take the right value from the hash (%list) :Use of uninitialized value in print at D:\system\perl\os-rec\os-rec5_.pl line 24 ,<HANDLE> line 3. Any idea ? if("$line" =~ "TTL=") { $line =~ s/.*TTL=//; print "TTL = $line\n"; print $list{"$line"} ; # print "Machine $machine_IP is $list{$line}" ; last; }Assuming a specific line is made of nothing but TTL=, then $line =~ s/.*TTL=//; will erase the line, leaving you with an empty (uninitialized) $line variable.
No it won't, it will leave $line containing a null (zero-length) string. There is no way to change a string value to uninitialized (undef) by deleting characters from it. - Rob -- To unsubscribe, e-mail: beginners-unsubscr...@perl.org For additional commands, e-mail: beginners-h...@perl.org http://learn.perl.org/
