Hi,
Below is my script which creates a file:
#!/bin/sh
if
then
echo "Enter bill period "
echo "Syntax: sh cpd.sh G08"
exit
fi
sqlplus uname/pwd@dbname <<EOF
set WRAP off
set FEEDBACK off
set PAGESIZE 0
set VERIFY off (14 Replies)
Hi,
Lets say I have a few xml files:
1234567894.xml
abc_1234567895.xml
abc_000_1234567890.xml
abc_0000000_1234567893.xml
684_abc_000_1234567899.xml
The naming convention of the files is:
xxxxx_timestamp.xml OR timestamp.xml
where x can be anything
and I would like to order them by... (4 Replies)
With an input file like this:
How can I get an output like this?
(In the quoted examples, the "_" sign represents an empty space)
Note that there are some minus signs and no spaces, in the example above the first character of the first line is an empty space, so each number spans 10... (16 Replies)
Hi
I am new to expect. Please if any one can help on my issue its really appreciable. here is my issue:
I want expect script for random passwords and random commands generation.
please can anyone help me?
Many Thanks in advance (0 Replies)
Is it possible to re-order certain rows as columns (of large files).
Few lines from the file for reference.
input
Splicing Factor: Tra2beta, Motif: aaguguu, Cutoff: 0.5000
Sequence Position Genomic Coordinate K-mer Score
97 chr1:67052604 uacuguu 0.571
147... (3 Replies)
Hi,
Could some one please help to order the batch number in sequence.
I will be getting bunch of files with batch number in folder1 which are not in sequence.
I need to move all files from folder1 to folder2 with batch number in sequence.
Header record looks like
PROCESS1... (8 Replies)
Need to use dd to generate a large file from a sample file of random data. This is because I don't have /dev/urandom.
I create a named pipe then:
dd if=mynamed.fifo do=myfile.fifo bs=1024 count=1024
but when I cat a file to the fifo that's 1024 random bytes:
cat randomfile.txt >... (7 Replies)
Hello.
I have a script that writes parameters in alphabetic order.
But I have a parameter which have 3 lines. There is no continuation character ( '\' ). Each of the three lines finish with 'cr'. But line 2 and 3 of the concerning parameter start with a tab char (but should be one or more... (7 Replies)
Discussion started by: jcdole
7 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)