hey people..
i have a configuration file that looks like
7080 7988
net04.xxxxx.edu
20
where 20 is the number of threads in the thread pool initially.
net04.xxxxx.edu is the hostname.
and 7080 7988
are two ports. first one for client requests and second one for dns communication. now my... (2 Replies)
Hello,
I have a cat.dat file, i would like shell to read each 3 lines and set this 3 lines to 3 different variables.
my cat.dat is:
11
12
+380486461001
12
13
+380486461002
13
14
+380486461003
i want shell to make a loop and assign 1st line to student_id, 2nd line to... (4 Replies)
The text file has one single row and looks like this
Q1 P1 2006
I have to pick up this values from a shell script into three different variables,
say quarter, period and year from the above text file. Some one know's how to do this? I went through 'sed', dint really know how to... (3 Replies)
Hi,
I have a file like the following...
CUST=
DIR=
NULIST=
name=philps_123
How can i add values to each of these unassigned variables using a shell script?
say for eg: i have values for CUST as onida, dir as /dir/onida, NULIST as /tmp/onida_files. How can i add these values to... (11 Replies)
For example, I have a file with below lines containing VOB tags and VOB paths.
* /vobs/fts/FTSUSM20_VOB /ccvobsslx01/projects/vobs/eml/FTSUSM20_VOB
* /vobs/fts/FTS20_VOB /ccvobsslx01/projects/vobs/eml/FTS20_VOB
* /vobs/pmv/PMS_VOB /ccvobsslx01/projects/vobs/cpm/_/PMS_VOB
*... (4 Replies)
Hi,
I have requirement to assign values to variables which are created dynamically.
Below is the code which i am using to achieve above requirement.
#!/bin/ksh
oIFS="$IFS"; IFS=','
STR_FAIL_PARENT_IF_FAILS="WF_F_P_IF_FAILS1,WF_F_P_IF_FAILS2,WF_F_P_IF_FAILS3"
set -A... (1 Reply)
I am trying to read a input file which has two columns separated by space
Input file
server1 server2
server3 server4
server5 server6
When i execute the below while code it reads line by line and a and b variables are able to successfully fetch the values
while read a b
do
echo "$a"
echo... (5 Replies)
I have a file containing multiple values, some of them are pipe separated which are to be read as separate values and some of them are single value all are these need to store in variables.
I need to read this file which is an input to my script
Config.txt
file name, first path, second... (7 Replies)
so i've been used to doing it this way:
SVAL=$(echo "7 3 2 38 3" | awk '{print $2}')
4VAL=$(echo "4:21:N:3" | awk -F":" '{print $4}')
I know there's a way to do it by putting the value in an array and assigning it that way. but i'm not sure how to do it efficiently. any ideas? i dont... (9 Replies)
Discussion started by: SkySmart
9 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)