From the Apache thread in the Adanced forum:
Thats because your browser interprets anything within angle brackets to be an HTML tag. You need to quote these brackets if you want them to appear correctly. The proper quotes are:
&lt; for <
and
&gt; for >
So, for example, you would have... (1 Reply)
:D i am pretty much new to scripting and don't want to pick up bad habits so I am trying to get myself to use brackets in my scripts since I plan on using them alot.. !
in this example of a script I wrote I can not figure out where the brackets go can anyone give me some insight into the use of... (3 Replies)
Hi,
I would like to know about the usage of brackets to negate a set of boolean evaluations
an equivalent to what i am trying is below
if or || ] ]
then
echo"valid time of day"
else
echo "invalid input"
exit
fi
the bracket structue as mentioned doesnt work .. i am using ksh.... (4 Replies)
hi all,
i want to delete brackets in all the file and to keep the string or data between them ( example Q --> Qxxx) with sed command..
thanks (4 Replies)
Hello guys, I'm brand new to UNIX. I've installed Cygwin as recommended, but here are some problems. Well, man command doesn't work and I also don't know how to create a file or even how to type (). With () the program gives me an error message. Please tell me how to do all these things. Best... (4 Replies)
Hi
I am having hard time getting this right and need some help. I Have several log files, and everyone contains the following 3 lines at the end:
4 ETW000 Disconnected from database.
4 ETW000 End of Transport (0000).
4 ETW000 date&time: 13.01.2011 - 08:03:28
I need to capture the value... (7 Replies)
Hi All,
I have a text file which looks like this:
computer programming
systems engineering
I want to get rid of these square brackets and also the text that is inside these brackets. So that my final text file looks like this:
computer programming
systems engineering
I am using... (3 Replies)
Hi,
If you suppose that you have two columns of numbers, and I want to merge these two columns into one and put a bracket around it. and perphaps add a dash between two numbers.
input.txt
1 2
3 4
5 6
7 8
output.txt
(1-2)
(3-4)
(5-6)
(7-8)
Thanks in advance!
Please use... (2 Replies)
Hi all. i need a small help.
i have written an exit code, which will check whether mo.sh is successful or not. if the status is >0 it will exit the shell.
1>Do you guys think it is a correct way to write?
2>what if i change the double bracket to single. how will it change the o/p.
... (1 Reply)
Hi
I am having hard time getting this right and need some help. I Have 3 files, and everyone contains the following:-
File1
Today, we have Name(Jack) Age(19) Class (A2)
Today, we have Name(Kim) Class (G9)
File2
Today, we have Name(Lee) Age(19) Class (A2)
Today, we have... (8 Replies)
Discussion started by: samsan
8 Replies
LEARN ABOUT DEBIAN
devel::refcount
Devel::Refcount(3pm) User Contributed Perl Documentation Devel::Refcount(3pm)NAME
"Devel::Refcount" - obtain the REFCNT value of a referent
SYNOPSIS
use Devel::Refcount qw( refcount );
my $anon = [];
print "Anon ARRAY $anon has " . refcount($anon) . " reference
";
my $otherref = $anon;
print "Anon ARRAY $anon now has " . refcount($anon) . " references
";
DESCRIPTION
This module provides a single function which obtains the reference count of the object being pointed to by the passed reference value.
FUNCTIONS
$count = refcount($ref)
Returns the reference count of the object being pointed to by $ref.
COMPARISON WITH SvREFCNT
This function differs from "Devel::Peek::SvREFCNT" in that SvREFCNT() gives the reference count of the SV object itself that it is passed,
whereas refcount() gives the count of the object being pointed to. This allows it to give the count of any referent (i.e. ARRAY, HASH,
CODE, GLOB and Regexp types) as well.
Consider the following example program:
use Devel::Peek qw( SvREFCNT );
use Devel::Refcount qw( refcount );
sub printcount
{
my $name = shift;
printf "%30s has SvREFCNT=%d, refcount=%d
",
$name, SvREFCNT($_[0]), refcount($_[0]);
}
my $var = [];
printcount 'Initially, $var', $var;
my $othervar = $var;
printcount 'Before CODE ref, $var', $var;
printcount '$othervar', $othervar;
my $code = sub { undef $var };
printcount 'After CODE ref, $var', $var;
printcount '$othervar', $othervar;
This produces the output
Initially, $var has SvREFCNT=1, refcount=1
Before CODE ref, $var has SvREFCNT=1, refcount=2
$othervar has SvREFCNT=1, refcount=2
After CODE ref, $var has SvREFCNT=2, refcount=2
$othervar has SvREFCNT=1, refcount=2
Here, we see that SvREFCNT() counts the number of references to the SV object passed in as the scalar value - the $var or $othervar
respectively, whereas refcount() counts the number of reference values that point to the referent object - the anonymous ARRAY in this
case.
Before the CODE reference is constructed, both $var and $othervar have SvREFCNT() of 1, as they exist only in the current lexical pad. The
anonymous ARRAY has a refcount() of 2, because both $var and $othervar store a reference to it.
After the CODE reference is constructed, the $var variable now has an SvREFCNT() of 2, because it also appears in the lexical pad for the
new anonymous CODE block.
PURE-PERL FALLBACK
An XS implementation of this function is provided, and is used by default. If the XS library cannot be loaded, a fallback implementation in
pure perl using the "B" module is used instead. This will behave identically, but is much slower.
Rate pp xs
pp 225985/s -- -66%
xs 669570/s 196% --
SEE ALSO
o Test::Refcount - assert reference counts on objects
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.14.2 2011-11-15 Devel::Refcount(3pm)