For bash you can try:
If it is ok to just have a list instead of an array you could pipe the output of ls into a while/read loop to work on the single elements.
I would like to extend a logical drive on our 3510. I have four unallocated disks which I would like to use for this purpose.
The 3510 supports a Sun Cluster but for now all I wish to see is a "new" disk when I run format.
I am a little familiar with the telnet/ssh session on the 3510 but am... (2 Replies)
firstly, i check is the variable empty or not, if so
vesselNameList=`echo $vesselName`
if not
vesselNameList="${vesselNameList}""\n"`echo "$vesselName"`
and it produces this result
BUNGA TERATAI 3 5055\
JADE TRADER 143W\
MOL SPLENDOR 0307A
BUNGA TERATAI 3 5055\
JADE... (1 Reply)
Hi ,
I 'm trying to check if multiple directories exist on a server, if not create the missing ones and print " creating missing directory.
how to write this in a simple script, I have made my code complex
if ; then
taskStatus="Schema extract directory exists, checking if SQL,Count and... (7 Replies)
I've been working with Solaris/Linux for about 4 months now. Let me explain the scenario. There will be two users involved. The owner (curOwner) and the new user (newUser). The server in question is a Solaris 10 box.
So curOwner runs an application that is constantly writing logs to lets say.... (2 Replies)
Hi,
I have a directory /home/datasets/ which contains a bunch (720) of subdirectories called hour_1/ hour_2/ etc..etc.. in each of these there is a single text file called (hour_1.txt in hour_1/ , hour_2.txt for hour_2/ etc..etc..) and i would like to do some text processing in them.
Each of... (20 Replies)
Hi,
Very unfamiliar with unix/linux stuff. Our admin is on vacation so, need help very quickly.
I have directories (eg 40001, 40002, etc) that each have one subdirectory (01).
Each subdir 01 has multiple subdirs (001, 002, 003, etc). They are same in each dir.
I need to keep the top and... (7 Replies)
Hi All,
I have a list of words (these are actually a list of database table names separated by comma).
Now, I want to find only the non-existing list of words in the *.java files of current directory and/or its sub-directories.
Sample list of words:... (8 Replies)
How can I have an intelligent script that will copy from source to destination directory if the file doesnt exist there or the chksum is not match.
SOURCE directory:
for i in `ls`
> do
> echo $i
> md5sum $i
> echo ""
> done
asdasda
00039a616135792fb609d04cf27aed95 asdasda
... (5 Replies)
Hi Experts
I need your help to optimize my script to execute better as I have nearly 1M records & the script is taking close to 40 minutes to execute, so would need support on a faster alternative.
Input: file
{"house":"1024","zip":"2345","city":"asd","country":"zzv"}... (2 Replies)
Discussion started by: nk1984
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)