Hi All,
Thanks in advance for reading and any posts...
I have to delete a lot of files (about 6 pages of a4 (ls -ltr)) but I have to keep some as well. I would normally do an rm * to get rid of them all, but thats not what I want to do. Is there anyway I could rm * but add in a list of... (8 Replies)
Is there a command I can use to rename all directories with a certain name to a new name. For instance from my root directory I want to change all folders named '123' to '321' that are in the root directory or any subdirectory.
Thanks in advance! (6 Replies)
Using a bash script, I need to find all files in a folder "except" the newest file. Then I need to insert the contents of one text file into all the files found. This text needs to be placed at the beginning of each file and needs a blank line between it and the current contents of the file. Then I... (5 Replies)
Hi,
I was wondering if there is a way to find a particular file and then give it as an input to a program and then dump it into another file.
Something like this:
find ./ -name '*.txt' -exec ~/processText {} > mod.<current_file> \;
I've been trying all sorts of weird things but not... (2 Replies)
On my application there are lots of users are doing there work or tasks? ...In my SSH or in 'Putty' i am observing logs?
Hot to observe one particular 'user' logs.. even through there are lots of users working on it?
For EX: i am log in with use rid:nikhil@in.com. another one log in with... (4 Replies)
HI
I have a requirement to find the last updated files from a directory whcih has subdirectories and inside them we have files with .txt,.doc,.xls .. extensions. i have to find those files which were updated in the last 1hr and rename the files with respective <sub-directory>_<filename> and copy... (3 Replies)
In response to a closed thread for degraff63 at
https://www.unix.com/shell-programming-scripting/108882-using-mv-find-exec.html
the following command might do it as some shells spit it without the "exec bash -c " part:
Find . -name "*.model" -exec bash -c "mv {} \`echo {} | sed -e 's//_/g'\`"... (0 Replies)
Hello
Im trying to make a script in bash shell programming to find subdirectories with the same name into the same directory and rename one of them!!
Could you please help me?
Thanks in advance (1 Reply)
Hi all,
what i'm trying to configure its to the following,
find all files older then 1 min,gzip them ,rename/move with date and extension .gz (example tes.log_2012-07-26.gz) and trying to move them to another folder (gzipped),the command i'm typing its this,
find /home/charli/Desktop/test/ -type... (4 Replies)
but it's not working.
Hello all.
I'm running the following command to find files with a specific name and rename them, but the command prompt returns a short 10 seconds after executing and doesn't find or rename anything.
What am I doing wrong here?
find . -type f | for file in... (3 Replies)
Discussion started by: bbbngowc
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)