01-05-2006
hey that worked awesome, thanks a lot.
10 More Discussions You Might Find Interesting
1. UNIX for Dummies Questions & Answers
flavor -- AIX 4.2.1
I am putting together some HTML pages, some of which contain forms. The problem pops up when I attempt to pass variables (from the forms) from one HTML page to a cgi-like page created using ksh.
I have used the $1 - $9 vars, but they do not work with the passing. With... (1 Reply)
Discussion started by: Xiix
1 Replies
2. Shell Programming and Scripting
All,
Any chance someone could help me with this.... The script is reading from a file and for every line of input to the loop I am trying to assign a new varible. When i run the script I get the below errors. I have come to a bit of a dead end so any pointers/help would be very much... (1 Reply)
Discussion started by: oconnon2
1 Replies
3. UNIX for Dummies Questions & Answers
Hi,
I want create env variable for "/ramakrsihna/scripts"
help me on this. (1 Reply)
Discussion started by: koti_rama
1 Replies
4. Shell Programming and Scripting
I need to split a long varible which is a whole line read from a file into fields and store them in an array, the fields are delimited by pipe and a field may contain white spaces.
I tried the following concept test and it has problem with field 5 which contain a space, appearently so because... (3 Replies)
Discussion started by: gratus
3 Replies
5. Shell Programming and Scripting
So in my shell i execute:
{ while true; do echo string; sleep 1; done } | read line This waits one second and returns.
But
{ while true; do /bin/echo string; sleep 1; done } | read line continues to run, and doesn't stop until i kill it explicitly.
I have tried this in bash as well as zsh,... (2 Replies)
Discussion started by: ulidtko
2 Replies
6. UNIX for Dummies Questions & Answers
Bit of a weird one i suppose, i want to use an echo inside an echo... For example...
i have a script that i want to use to take users input and create another script. Inside this script it creates it also needs to use echos...
echo "echo "hello"" >$file
echo "echo "goodbye"" >$file
... (3 Replies)
Discussion started by: mokachoka
3 Replies
7. Shell Programming and Scripting
Working on a way to speed up my script output. I have a multiline file that I pull each line as a variable and post it on a webpage. It needs some help as it works but slow. I think I have too many cat, grep and sed going on but don't know what would work better.
#!/bin/sh... (5 Replies)
Discussion started by: numele
5 Replies
8. Shell Programming and Scripting
echo `echo ` doesn't echoes anything. And it's logic. But
echo `echo `echo ` ` does echoes "echo". What's the logic of it? the `echo `echo ` inside of the whole (first) echo, echoes nothing, so the first echo have to echo nothing but echoes "echo"
(too much echoing :P):o (2 Replies)
Discussion started by: hakermania
2 Replies
9. Shell Programming and Scripting
For example
test.sh:
test="teststring"
cmd=$1
$cmd
For some reason I'm NOT seeing "teststring" when I type: ./test.sh "echo $test"
Any ideas on how to get around this?
I've tried commands like:
./test.sh "echo $($test)"
./test.sh "echo '$test'"
And many variations to no... (6 Replies)
Discussion started by: secops
6 Replies
10. UNIX for Dummies Questions & Answers
Hello all, I have a Mac OS X (10.7), and I need to set environment variables and paths for some programs I will be running. I have followed instructions and searched the Web for where to do this, but I can't seem to find an answer. I have tried using the VIM editor to write them into my .login,... (2 Replies)
Discussion started by: Tyler_92
2 Replies
LEARN ABOUT DEBIAN
data::dumper::concise::sugar
Data::Dumper::Concise::Sugar(3pm) User Contributed Perl Documentation Data::Dumper::Concise::Sugar(3pm)
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 v5.10.1 2011-01-20 Data::Dumper::Concise::Sugar(3pm)