I have 2 files. File 1 exports variables globally, File 2 pulls in the information into itself and displays it. I need to know how to then save the information into the bottom of File 2, allowing for more information to be added at a later date.
The scripts i've written are below.
File 1:... (8 Replies)
How would I pass awk output to a perl variable?
For example, I want to save the value in the 4th column into the variable called test. My best guess is something as follow, but I am sure this isn't correct.
$test = system("awk '/NUMBER/{print \$4}' $_"); (8 Replies)
Hello,
I have a shell script containing a command string in the following format:
command1 | command2 | cut -c9-16
The output from this is a record number (using characters 9-16 of the original output string) e.g. ORD-1234
I wish to save this value to a variable for use in later commands... (4 Replies)
hi
I have a script to login from a host "A" to a list of hosts in a file and perform some commands inside it...its somethin like this
for i in `cat file`
do
ssh -t $i " command1 ; command2; ..."
done
I wanna save the outputs in a file in the current host "A" i.e from where I am... (3 Replies)
I am ssh to many servers to get some information... however sometimes the server is unreacheable and i am getting an error. I want to save that output to a file but I am not able to do so...
I want to be able to save output of bash into a file.. so when I run this command on a script
ssh... (5 Replies)
Hi all........
Plss do help me.......in a big trouble... :wall::wall::wall:
I have 3 directories named as :1. /home/shuchi/source
2./home/shuchi/destination
3./home/shuchi/filter
now the problem is /home/shuchi/source has say 2 files with extension .txt as given below :
A.txt
Code:
... (0 Replies)
Hi all........
Plss do help me.......in a big trouble... :wall::wall::wall:
I have 3 directories named as :1. /home/shuchi/source
2./home/shuchi/destination
3./home/shuchi/filter
now the problem is /home/shuchi/source has say 2 files with extension .txt as given below :
A.txt
msisdn ... (5 Replies)
I have been trying this program for a long time. I am trying to read a file named "odon" line by line; read the first line, send it to do a command saved in a file "perm", once the first line has finished going through the content of the file perm, the result is saved with the number of the line.... (17 Replies)
Hi,
i need help with a file creation of an output program. I've got a program that with #find creates an output for each files in a directory.
If i give this command :
-o spec$(date -u +%Y%m%dt%H%M)
it creates just one file, overwriting all the others since it is the creation date .... (2 Replies)
Hi,
I am working on a script where I am adding adding colors to few of the info in the output.
Now , after that is done , I see colour codes in log files which I don't want to see.:mad::mad::mad::mad:
So , I tried using sed command in script as below which gives me o/p (new.log) as blank file... (7 Replies)
Discussion started by: Dream4649
7 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)