I'm trying to figure out a way to delete empty files in a directory. I have a cron that runs and creates a flat file every 15 mins. However, most times at night the flat file will be empty.
I'd like to run a script to delete empty files that end with *.dat
Any suggestions?
Rich (1 Reply)
Hi,
I have the following task to perform using shell script.
The user will provide a directory name along with a date. The script will delete all the files in the specified directory that was created earlier to that date. Also it should display the number of files that has been deleted.
... (7 Replies)
i want to delete all the files in my directory except the latest one. i need to do this from shell script.
say i have
a.txt - latest file
b.txt,
c.txt..
it should delete all the files except a.txt? (4 Replies)
Hi,
I am trying to write a shell script to delete logs generate by db when space in the folder reaches 70%. i am getting space values from db, find the files at OS and remove them by using a cron job runs every 5minutes.
I have to keep the latest 5 files at any time, my problem is that log files... (3 Replies)
hi,
I have 100 files say File1.mp3, File2.mp3 .......file100.mp3
i found that File1.mp3 to File50.mp3 are damaged.
I want to delete the damaged files from the directory using sed with regex how can i do this.
thanks (5 Replies)
I have a local linux machine in which the files are dumped by a remote ubuntu server. If the process in remote server has any problem then empty files are created in local machine. Is there any way using perl script to check if the empty files are being created and delete them and then run a shell... (2 Replies)
Hi
My directory structure is as below.
dir1, dir2, dir3
I have the list of files to be deleted in the below path as below.
/staging/retain_for_2years/Cleanup/log $ ls -lrt
total 0
drwxr-xr-x 2 nobody nobody 256 Mar 01 16:15 01-MAR-2015_SPDBS2
drwxr-xr-x 2 root ... (2 Replies)
Hello,
we have more than 100000 files in a directory which are write-protected regular file, these files are quite old and would like to delete them completely, Kindly let me know the command or peice of code to automate the process.
The filenames are like below
MPNT_... (6 Replies)
Hello,
I'm new to shell scripting and need a quick note on how to write a shell script to perform deletion of files from 5 different hostnames in various locations.
Found out to delete files from one path by using below command and made it to work on cron job but need to do it in a shell... (2 Replies)
Hello,
I am new to shell scripting, need help,
my requirement is to delete the ip address from serveral files,
please suggest (2 Replies)
Discussion started by: manoj.solaris
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)