I am accessing a UNIX server via FTP. I want to retieve a file in a directory. What is the UNIX command that I need to view and retrieve files from a directory? (1 Reply)
I am writing a shell script to search for previous versions of an application...the application is called TAU and basically i want to search the users home directory and /Applications for any instances of a "TAU" folder.. If found i want to give the user the option to remove the old folders and if... (3 Replies)
Hi guys,
can any one tell me how to create directories using regular expression?
Let's say that I need to create directories test01, test02, test03.... test10.
Can it be done using any regular expression?
thanks. (13 Replies)
I have directories like V00R01,V00R02,V01R01,V01R02 in a directory
where V is version and R is a release. basically I need to set base directory and current directory. Under a version there can be any number of releases and there can be number of versions also.
V00R01...V00R50..so on
also,... (2 Replies)
Hello all,
Here's the deal...I have one directory with many subdirs and files.
What I want to find out is who is keeping old files and directories...say files and dirs that they didn't use since a number of n days, only one level under the initial dir. Output to a file.
A script for... (5 Replies)
Hi,
I want to find the files available in a directory /var/user/*/*/data/.
I tried using the command "find /var/user/ -path '*/*/data/ -name '*' -type f" it says find: 0652-017 -path is not a valid option and then i tried using "find /var/user/ -name '*/*/data/*' -type f" but its not... (3 Replies)
Alright so I've tried a couple different things that at first glance, looked like they worked.
find . -maxdepth 5 -type d -daystart -mtime 1 | xargs du -h Which seems to ignore the previous commands such as depth and modified time.
find .. -maxdepth 2 -type d -daystart -ctime 1 | xargs... (8 Replies)
I have multiply directories scattered throughout my system that end in 2011.
Example:
one_2011
two_2011
three_2011
etc....
I'm trying to find all of these directories but coming up short.
I tried
find / -type d -name *2011 > example
Any suggestions? I already searched in the... (13 Replies)
I have a large file of plain text, created using some OCR software. Some words have inevitably been got wrong. I've been trying to create grep or sed, etc., regular expressions to find them - but haven't quite managed to get it right. Here's what I'm trying to achieve:
Output all lines which... (2 Replies)
Hello Everyone,
I have a file sam1 with the below content
SYSYSID;MANDT;/SIE/AD_Z0M_INDX;/SIE/AD_Z0M_KEY1
echo $Regex
\bSYSYSID\b|\bMANDT\b|\b/SIE/AD_Z0M_INDX\b|\b/SIE/AD_Z0M_KEY1\b
cat sam1 | grep -Eo $Regex
I expect the result as
SYSYSID
MANDT
/SIE/AD_Z0M_INDX
/SIE/AD_Z0M_KEY1... (4 Replies)
Discussion started by: sam99
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)