Hi,
I am writing a script which takes the input file name and concat as a new file by appending a "1" to the file name. However i am not able to get the size of this new file. I am not sure where i am going wrong. Please check the script and help me get this working.
#!/bin/sh ... (1 Reply)
Hello, i am familiar enough with unix to do some damage but thats about it.
We have a set of RS/6000 43P Model 150's running AIX for our Catia V4 programmers.
back in the 90's a script was written to automate the conversion of files into machine code. that script has started giving us... (0 Replies)
Hi All, I am new to this forum as well as to unix scripting.
Can you please help me to create a korn shell script to find out errors in logfiles and get the name of that logfile ( which is having error) in email and email it to me? (2 Replies)
hiiii
shell script to find noof characters in a file name, when you run ls -l (using awk)
I tried with this
ls -l > temp
awk -F"," '{print $1 " " expr length $9}' temp
but it give some other value instead of file name length (error value like , 563,54,55,56....).How to prnint the... (10 Replies)
Hey guys - i have a script (below) that searches for current files in a particular directory.
However i was wondering how to make it search for "yesterdays" file. For instance it looks for a file from yesterday and no older than that.
I used stat command to check for file information:
... (6 Replies)
I need help as to how to write a script in Unix for the following:
We have 3 servers;
The mainframe will FTP them to a folder. In that folder we will need the script to look and see if the specific file name is there and load it to the correct table.
Can anyone pls help me out with... (2 Replies)
Right, noob to shell scripting, playing a round for practice, wrote the following but it doesn't seem to work as expected, how could I fix/improve this script?
#!/bin/bash
#set -v
#set -x
case $# in
1)
echo Searching for $1 in '*';
find . -iname '*' 2>/dev/null | xargs grep "$1" -sl... (3 Replies)
Hi,
I am new to shell scripting. I need a bash shell scripts which search and grep a parameter value from input.txt file and insert it in between two semicolon of second line of output.txt file.
For example
The shell script search an IP address as parameter value from input.txt ... (2 Replies)
1. The problem statement, all variables and given/known data:
Write a shell script that takes a single command line parameter, a file path (might be relative or absolute). The script should examine that file and print a single line consisting of the phrase:
Windows ASCII
if the files is an... (4 Replies)
Discussion started by: kwatt019
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)