I have gone to /usr/bin/ and click on perl but notting happens.also notting happens when i click on c/c++ or any other program
whats wrong ? (2 Replies)
im trying to open a file in my bin directory and the farthest i can get is into the folder but not the actual file itself i use text edit as the editor. when i try to open the file it says it doesn't exist here is what i type
cd bin
open cmnds (dir. which it is under)
open test
no such... (4 Replies)
I have two perl functions defined, both run a set of shell commands on some somplied data and return hashs of the resulting parsed output from these shell commands.
One works, one doesn't and I can't seem to see why. It's driving me insane :mad:
The working one:
sub getcellstatus {
... (8 Replies)
Hi All,
I need some expert help in performing the following in Perl.
I have a code below but it doesn;t seem to work. Can any expert give me some advice?
Below are the requirements
1) Open numerous files assigned to an array @FILES. Note that the files are always named with the term... (7 Replies)
Hi All,
I have a total of ten file to open in the Perl script and i am using a for loop to open each file and capture some strings inside each file.
Unfortunately, i encounter the below syntax error.
I think there should be something wrong with this term reports_${counting}_${_}.txt but i do... (4 Replies)
Good morning guys!!
Im still practicing with Perl and now Im trying to open a file, and copy its contents to another file. Them I want to remeove the information out of the orginal file after it is copied over.
The flow should be messages-->messages1-->messages2.
Kind of like a log... (1 Reply)
I developed a perl code..And the excerpt from it is given below...
open(HANDLE,$cmp_path) ; #reading the xml file from the file path
while($file_path = <HANDLE>)
I have list of XML files to read from a folder. It has some spaces inside the name of the file...I used "\"... (2 Replies)
Hello friends,
i have a perl script as below ...
for (0 ..$#values)
{
##want to print some message here in Report.txt file
print `find /abc/xyz/pqr/$values" -type f -ls` >> Report.txt
}
I am able to get output of print `find /abc/xyz/pqr/$values" -type f -ls` >> Report.txt
in... (2 Replies)
Dear All,
this is my first post on this Forum, glad to be here.
I'm trying to fix an .ods file. Yes, I had a backup, but it's also corrupted.
When opening the document I get this EM:
read error
format error discovered in the file in sub-document content.xml at
2,337040(row,col).
So I... (3 Replies)
Hi friends,
In my shell script, I want to open a file using vi editor. After opening the file in vi, I want to save and quit this file automatically.... all through shell script.
the code segment is:
------------------------------------------------------------
cd ~/netfpga/projects/scone/sw/... (2 Replies)
Discussion started by: sachinteotia
2 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)