03-24-2009
10 More Discussions You Might Find Interesting
1. IP Networking
Is there anyway to tell what my NT IP is while logging into my UNIX box. I have users accessing our NT network and then telneting into our Unix Box. I would like to restrict access somehow. My who commands only returns the users name and pts device which changes. (1 Reply)
Discussion started by: golfs4us
1 Replies
2. UNIX for Dummies Questions & Answers
can anyone tell me the procedure to view the MAC address for a system using linux (1 Reply)
Discussion started by: tcat
1 Replies
3. IP Networking
this might sound corny but i need help finding out about finding a persons ip address can u halp? and another question what the hell does ping mean??? thank u. (2 Replies)
Discussion started by: dragonslayer100
2 Replies
4. IP Networking
I'm not exactly sure what I can do with IPs... my friend won't tell me(don't ask me why, I figure it's cause he doesn't know either, hehe). I'm curious as to what theya re used for other than networking computers... if there IS any other purpose or use for them. That's all.
--Evil_d00d (4 Replies)
Discussion started by: evil_d00d
4 Replies
5. UNIX and Linux Applications
Greetings to all.
I have installed dadamail on my web site and it works extremely well.
I have two questions:
1. I have modified dada to bounce bad emails, but only the first newsletter will use the modifications. If I create another list, it doesn't use the modification.
What gives?
2. Are... (0 Replies)
Discussion started by: okbrowder
0 Replies
6. UNIX for Dummies Questions & Answers
Hello! I have logged in using Putty into another machine 'tele'. The ip address which i used to login to 'tele' is 192.168.1.3. Now while at 'tele' when i run "#ifconfig -a" i get the same ip address i.e, 192.168.1.3. But when i run "#arp tele" it gives the output:
tele (10.143.128.8)
... (9 Replies)
Discussion started by: suhail.sadaqat
9 Replies
7. Shell Programming and Scripting
Hi,
i am working on a project where i have to write a script to find out MAC addresses of the systems with given IP address.
Can anybody tell me which command i can use to find MAC address if you know IP address of the machine.
Thanks (5 Replies)
Discussion started by: manmeet
5 Replies
8. IP Networking
How would i create virtual interface in linux to configure more than one IP address for a physical interface?
any help wll be appreciated.
https://www.unix.com/images/misc/progress.gif (1 Reply)
Discussion started by: salil2012
1 Replies
9. Shell Programming and Scripting
I have an xml file with IP addresses all over the show. I want to print only the IP addresses and cut off any text before or after the IP address.
Example:
Note: The IP addresses (x.x.x.x) do not consistently appear in the xml file as per the pattern below. Sometimes there are text before... (8 Replies)
Discussion started by: lewk
8 Replies
10. Shell Programming and Scripting
Hi I normally ask questions on coding but I think there is a code that can do this. I have regular text throughout my file and I want to extract all e-mail addresses from it (rather than going and searching each one).
E-mails all have @ so I assume there is a way.
Thanks
Phil (6 Replies)
Discussion started by: phil_heath
6 Replies
LEARN ABOUT OSX
data::dumper::concise::sugar
Data::Dumper::Concise::Sugar(3) User Contributed Perl Documentation Data::Dumper::Concise::Sugar(3)
NAME
Data::Dumper::Concise::Sugar - return Dwarn @return_value
SYNOPSIS
use Data::Dumper::Concise::Sugar;
return Dwarn some_call(...)
is equivalent to:
use Data::Dumper::Concise;
if (wantarray) {
my @return = some_call(...);
warn Dumper(@return);
return @return;
} else {
my $return = some_call(...);
warn Dumper($return);
return $return;
}
but shorter. If you need to force scalar context on the value,
use Data::Dumper::Concise::Sugar;
return DwarnS some_call(...)
is equivalent to:
use Data::Dumper::Concise;
my $return = some_call(...);
warn Dumper($return);
return $return;
If you need to force list context on the value,
use Data::Dumper::Concise::Sugar;
return DwarnL some_call(...)
is equivalent to:
use Data::Dumper::Concise;
my @return = some_call(...);
warn Dumper(@return);
return @return;
If you want to label your output, try DwarnN
use Data::Dumper::Concise::Sugar;
return DwarnN $foo
is equivalent to:
use Data::Dumper::Concise;
my @return = some_call(...);
warn '$foo => ' . Dumper(@return);
return @return;
If you want to output a reference returned by a method easily, try $Dwarn
$foo->bar->{baz}->$Dwarn
is equivalent to:
my $return = $foo->bar->{baz};
warn Dumper($return);
return $return;
If you want to format the output of your data structures, try DwarnF
my ($a, $c) = DwarnF { "awesome: $_[0] not awesome: $_[1]" } $awesome, $cheesy;
is equivalent to:
my @return = ($awesome, $cheesy);
warn DumperF { "awesome: $_[0] not awesome: $_[1]" } $awesome, $cheesy;
return @return;
If you want to immediately die after outputting the data structure, every Dwarn subroutine has a paired Ddie version, so just replace the
warn with die. For example:
DdieL 'foo', { bar => 'baz' };
DESCRIPTION
use Data::Dumper::Concise::Sugar;
will import Dwarn, $Dwarn, DwarnL, DwarnN, and DwarnS into your namespace. Using Exporter, so see its docs for ways to make it do something
else.
Dwarn
sub Dwarn { return DwarnL(@_) if wantarray; DwarnS($_[0]) }
$Dwarn
$Dwarn = &Dwarn
$DwarnN
$DwarnN = &DwarnN
DwarnL
sub Dwarn { warn Data::Dumper::Concise::Dumper @_; @_ }
DwarnS
sub DwarnS ($) { warn Data::Dumper::Concise::Dumper $_[0]; $_[0] }
DwarnN
sub DwarnN { warn '$argname => ' . Data::Dumper::Concise::Dumper $_[0]; $_[0] }
Note: this requires Devel::ArgNames to be installed.
DwarnF
sub DwarnF (&@) { my $c = shift; warn &Data::Dumper::Concise::DumperF($c, @_); @_ }
TIPS AND TRICKS
global usage
Instead of always just doing:
use Data::Dumper::Concise::Sugar;
Dwarn ...
We tend to do:
perl -MData::Dumper::Concise::Sugar foo.pl
(and then in the perl code:)
::Dwarn ...
That way, if you leave them in and run without the "use Data::Dumper::Concise::Sugar" the program will fail to compile and you are less
likely to check it in by accident. Furthmore it allows that much less friction to add debug messages.
method chaining
One trick which is useful when doing method chaining is the following:
my $foo = Bar->new;
$foo->bar->baz->Data::Dumper::Concise::Sugar::DwarnS->biff;
which is the same as:
my $foo = Bar->new;
(DwarnS $foo->bar->baz)->biff;
SEE ALSO
You probably want Devel::Dwarn, it's the shorter name for this module.
perl v5.16.2 2011-01-20 Data::Dumper::Concise::Sugar(3)