Hi all,
I have upgraded my old RedHat 6.2 box to RedHat 7.3. I had couple hundreds of users on that box so i just migrated all the user account to a new box by transfering home directories, and appending to /etc/passwd /etc/shadow /etc/group. I have preserved all permittions. Everything works... (8 Replies)
Hello, the following is generating a error at the line "tmprintf(&tmBundle, _TMC("{0}"),Prompt);"... a bit lost as I am diving into this debug...
Thank you in advance...
int H_YesNo(TMCHAR *Prompt, int DefVal)
{
TMCHAR YesNo = '\0';
tmprintf(&tmBundle, _TMC("{0}"),Prompt);
while... (3 Replies)
Hello. Please help with this code. Returns an error message "syntax error near unexpected token =~. Conditional binary operator expected.
if " ]] || " ]]
then
echo "Enter only valid numbers"
fi (2 Replies)
Hi,
I am compete linux noob, but have managed to setup my Thecus N5500 to rsync to my N5200Pro to do automatic backups each night.
The rsync script also moves any files deleted from the N5500 (and previously backed up to the N5200) to a _deleted folder on the N5200 so I can keep them for 30... (10 Replies)
Hello all,
Im having an Issue with my script for switch statement , can someone let me know where do i need to correct it.
7 ##*******************************************************************************************************
8 ## ********** FUNCTION USAGE ***********
... (13 Replies)
first of all I thought the argument DONE is necessary for all scripts that have or begin with do statements which I have on my script, However, I still don't completely understand why I am receiving an error I tried adding another done argument statement but didn't do any good.
I appreciate... (3 Replies)
I tried to execute the code but I got this error
./Array.c: line 9: syntax error near unexpected token '('
./Array.c: line 9: ' nvals = get_data(a,MAXARRAY);'
and
#include<stdio.h>
#define MAXARRAY 1000
main()
{
int a,
nvals;
nvals =... (7 Replies)
Hi all,
I have a simple script that doesn't work somehow. I can't seem to be spotting the cause of the malfunction.
count=$((1))
for item in `cat test1.txt`
printf %s `sed -n $((count))p test2.txt` > test3.txt
count=$((count+1))
do
something
done
I get ;
./why.sh: line 3:... (14 Replies)
Hello all,
Please i have this command i used to zip different files in differents directory, but i have an error. Note that when i run the command in one directory it works fine.
/X5/WORK/BGH/INV/REG/pdf/SEND/BGH12523/1/*.fo
/X5/WORK/BGH/INV/REG/pdf/SEND/BGH24523/1/*.fo... (3 Replies)
Hi Everyone,
my script was running Ok, but suddenly it started giving this error.
./update_env_bi.sh: line 54: syntax error near unexpected token `)'
./update_env_bi.sh: line 54: `sed -i "s/PORT=*1/PORT=$2/" repository.xml'
The line 54 has this code.
sed -i "s/PORT=*1/PORT=$2/"... (2 Replies)
Discussion started by: shajay12
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)