i am writing a client and server program
client program
main()
{
int sockfd,n;
char str;
struct sockaddr_in sock;
if ((sockfd=socket(AF_INET,SOCK_STREAM,0))<0)
{
perror("SOCKET ERROR");
}
bzero(&sock,sizeof(sock));
sock.sin_family=AF_INET; (1 Reply)
Hi,
I did a df|awk| command and it returns a percentage "94%",
how could I only get the integer part
"94" out of it, so I can compare it to another number,
I knwo that I have to pipe it to sth, but "grep " did not work, it still give me number WITH the percentage, does someone know what... (3 Replies)
Hi ,
I have code like below in my ksh script, but getting an error as SP2-0253: data item 1 ("SAMPLE_ID") will not fit on line , pls help me. thanks.
if (( CHECKS == 0 )) || (( CHECKS == 1 ))
then
V_SAMPLE_ID=$( $ORACLE_HOME/bin/sqlplus -S / <<EOF
whenever sqlerror exit 1... (5 Replies)
i have created a script that will reverse any given ineter.
#!/bin/ksh
echo "Enter the number"
read n
if
then
a=`expr $n / 10`
b=`expr $n % 10`
c=`expr $b \* 10 + $a`
fi
echo $c
---------------------------------------------------------------------
the problem with this script... (4 Replies)
I have search the forum for an easier way to write this code. I have two separate 'if' to do this and it works but am wondering if someone knows a quick way to combine them. I want anything between 1 and 100 but not '01' or '005', '0010', etc.
if ) ]] ||
]; then
echo "Try... (3 Replies)
Hey I am trying to calculate a number but I found out the expr I knew works only with integers. Any help. I want to calculate (120/220) *100.
Thanks! (2 Replies)
hello,
i am writing a script that takes the UID from the PASSWD and then i want
to increse the Number by one. for the Next user.
i cannot get this to work that a variable is as interger
example:
set i = 0
set $i = $+1
it's in tcsh if it's mather (10 Replies)
I am migrating some shell script from Unix to Linux and i am getting wrong value for integer variable.
In Unix:
integer X=007300
echo $X
7300
In Linux:
integer X=007300
echo $X
3776
Please help me why it is giving wrong output. (1 Reply)
I am on HP-UX using ksh in the script.
MaxSal=`sqlplus -silent /nolog <<EOF
connect / as sysdba
whenever sqlerror exit sql.sqlcode
set pagesize 0 feedback off verify off heading off echo off
select max(sal) from emp1;
select max(sal) from emp2;
select max(sal) from emp3;
exit;
EOF`... (3 Replies)
Discussion started by: bang_dba
3 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)