I am copying a file to tape but it keeps failing, can any body help?
I tried the tar,cp, mv commands and not seems to be working
#!/bin/ksh
#
# Return Codes
# 0 - success
# 1 - failure
#
#
#
dat=`date +%y%m%d`
cp /u07/work/theo_test.log /dev/rmt0/exp_dump.${dat}.$$
if (( ${?}... (1 Reply)
I have a file called feed_file. Every week, I would like to copy this file
to tape. I would not like the file on this tape to be over written with
the previous weeks file. So what I would prefer to do is to add time stamp
at the end of each weeks file on the tape in order for the files to look... (1 Reply)
I have two tape drives attached to my system , and i am trying to copy one tape to another using both tape drives and using the following command :
dd if=/dev/rmt/1 of=/dev/rmt/2
but unfortunitly i am getting the following error :
read: Not enough space
0+0 records in
0+0 records... (2 Replies)
Hello, I am trying to copy a boot tape DDS-01 with miniroot, but i donīt get this copy. i have already used the command dd, but donīt work. There are other way to get it. (0 Replies)
I have several files that I need to get off of a backup tape. I'm using AIX 4.3 (I know this is old) and our backups are done using the bru command. I need to copy these files to a specific location, and not restore them to the original location. Can anyone tell me what command I should use to do... (4 Replies)
Hello,
We need to make a copy of a backup tape, using the 2 tape recorders in IBM 3582 Tape Library
We tried tu use "tcopy", it seems to work fine (no error messages) but we aren't sure if we can rely on it.
my question is how to check if the copy succeded or not, but i also want to know... (3 Replies)
Hi,
I have an mksysb backup which consists of 2 Volume, how do I combine it into a single Volume or tape ?
Appreciate it (1 Reply)
Discussion started by: AIXBlueCat
1 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)