I need to create a simple shell script to check filesystems space in a file system called "/arch_nb" then based on the percentage use either run another script or exit.
I was thinking of something simple along the lines of:
df -k | then some action to pipe for percentage used
...place... (10 Replies)
shell script to send email with usage of space in the directory as description :
Please any one help me in writing a script to send email with usage of space in the directory as description . (3 Replies)
Hi,
I have one shell script which use two parameter however one of its parameter have space in between.
eg.
a.sh 20110114 b c d
here b c d is one parameter
I used 'b c d' but its not giving correct result.
Also i tried b\c\d but this one also didnt work.
Any help would be... (5 Replies)
Hi All,
Linux 86x64bits Red Hat Linux O/S
Could someone please check and let me know if the shell script has any syntax error as it's not sending mails
Shell script:
cat dataspace.sh
#!/bin/bash
export DBALIST="xyz@abc.com"
export data_capacity
df -k /oradata > dfk.result... (18 Replies)
Hi Guys,
I'm a newb at shell scripting and successfully attempted a small disk space script (victory!!) but i'm wondering whether it actually takes into consideration KB,MB,GB. Please take a look at the script and advise.
##script to check if file sys has reached threshold.
... (3 Replies)
Hi,
In my shell script I use the following code to copy files from one directory to other.
for file in `ls`; do
#----------------- Copy Files From INDIR to OUTDIR -------------#
echoen "Copying File ${INDIR}/$file to ${OUTDIR}/${file}"
cp ${INDIR}/$file ... (4 Replies)
Hi ,
I Would like to know the space allocated by adding up all the allocated space to group of filesystems ..
example ,
df -h|grep /db | awk '{ print $4 }' ---> giving me all the used space on the filesystem but need to know the total used space by adding up all the values (3 Replies)
Discussion started by: nsankineni
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)