Is there a utility or command I can use to tell the number of decimal places a number has. For instance, if the number is 432, it will give hundred as the number of decimal places. (7 Replies)
Good Day
I mistakely renamed the dld.sl file in the /usr/lib directory. When i try to ls/ftp into the box i get this error :eek:
crt0: ERROR couldn't open /usr/lib/dld.sl errno:000000002
I have tried to rename it back from the renamed file to the original file name, but it gives me the... (2 Replies)
Hi There,
I have a script which finds for log files and removes them if the file has changed in the last day.
The script runs fine without errors. The log file is still there. So, I decided to print the find command and run the command outside the script. Getting "Incomplete statement"
Can you... (6 Replies)
When trying to copy a file in Solaris 8 it doesnt copy file or give a error. This worked 100% until the 29th. I've checked the rights and everything seems fine:
drwxrwxrwx 2 bmuser bmgroup 11776 Jan 3 10:32 spool
This is the file I want to copy:
-rwxrwxrwx 1 bmuser bmgroup ... (26 Replies)
Hi,
I have a script which does a tar and sends it to another server as backup.
Script is as below
# Locations to be backed up. Seperate by space
BACKUP_LOCATIONS=/repos/subversion
BACKUP_BASE_FOLDER=/bakpool
BACKUP_FILE_NAME_ROOT=svn-backup
START_TIME_DISP=`date`
START_TIME=`date... (11 Replies)
Hello all,
Something strange going on with a shell script I'm writing. It's trying to write a list of files that it finds in a given directory to another file. But I also have a skip list so matching files that are in that skip list should be, well uhm, skipped :)
Here's the code of my... (2 Replies)
Hi Guys,
I have a strange problem.( AIX 6.1) "vi" is not working at all..Whenever i #vi <anythin> ,, it returns the prompt back. Any clues folks?? (14 Replies)
I am trying to print out two fields in a file using awk. So, I have got
awk -F '\t' 'NF = 2 {print $1 $2 "]"}' two.txt
in a script called what.awk
When i run this version like this - ./what.awk then it runs however I want to run the program like this
awk -f what.awk two.txt.
When I... (8 Replies)
I have simple script. like that, I am working on /usr/local/src and also under src folder there is a ft folder
#!/bin/ksh
#!/bin/bash
dirpath="/usr/local/src/ft"
echo $dirpath
cd $dirpath
echo displays ok "/usr/local/src/ft"
but that doesn't enter "ft" folder. stays in current... (4 Replies)
Discussion started by: F@NTOM
4 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)