From what I understand, %04x pads the first element with 0s to make up 4 digits in hex, and is assigned to variable counter. After this, we print the rest of the line as a string.
However I cannot understand why we need counter+=NF in this case, as NF should be 16. Can you please explain this logic? Can we use something else to accomplish this (i.e for loop).
hi,
for reading a cobol indexed file i need to convert "mmddyy" date format to "ccyyddd" format.
i checked the datecalc and other scripts but couldnt modify them to cater to my need:(...
The datecalc gives an output which i believe is the total days till that date, but i want to convert it... (2 Replies)
:) Hi
i am trying to convert a file which is in UTF8 format to ANSI format i tried to use the function ICONV but it is throwing error
Function i used it as
$ iconv -f UTF8 -t ANSI filename
Error iam getting is NOT Supported UTF8 to ANSI
please some help me out on this.........Let me... (1 Reply)
:confused: Hi
i am trying to convert a file which is in UTF8 format to ANSI format i tried to use the function ICONV but it is throwing error
Function i used it as
$ iconv -f UTF8 -t ANSI filename
Error iam getting is NOT Supported UTF8 to ANSI
please some help me out on... (9 Replies)
Hi
I have a file which has ascii , binary, binary decimal coded,decimal & hexadecimal data with lot of special characters (like öƒ.ƒ.„İİ¡Š·œƒ.„İİ¡Š· ) in it. I want to standardize the file into ASCII format & later use that as source .
Can any one suggest a way a logic to convert such... (5 Replies)
Hello everybody,
I am having problem in converting byte array variables to Hexa String variables for Linux. I have done, converting byte array variables to Hexa String variables for Windows but same function doesn't work for linux. Is there any difference in OS ? The code for Windows is given... (2 Replies)
I have a file named "suspected" with series of line like these :
{'protocol': 17, 'service': 'BitTorrent KRPC', 'server': '219.78.120.166', 'client_port': 52044, 'client': '10.64.68.44', 'server_port': 8291, 'time': 1226506312L, 'serverhostname': ''}
{'protocol': 17, 'service': 'BitTorrent... (3 Replies)
I have a comma delimited log file which has the date as MM/DD/YY in the 2nd column, and HH:MM:SS in the 3rd column.
I need to change the date format to YYYY-MM-DD and merge it with the the time HH:MM:SS. How will I got about this?
Sample input
02/27/09,23:52:31
02/27/09,23:52:52... (3 Replies)
Hi All,
Is there any way to convert a file which is in UNIX format to a PC format....
Flip command can be used , apart form this command can we have any other way.... like usinf "awk" etc ..... main purpose of not using flip is that my Kshell doesnot support this comamnd.... (1 Reply)
Hi All,
Is there any way to convert a file which is in UNIX format to a PC format....
Flip command can be used , apart form this command can we have any other way.... like usinf "awk" etc ..... main purpose of not using flip is that my Kshell doesnot support this comamnd.... (2 Replies)
Hi Folks,
I have written a perl script that reads data from excel sheet(.xls) using Spreadsheet::ParseExcel module. But the problem is this module doesn't work for excel sheets with extension .xlsx.
I have gone through Spreadsheet::XLSX module with which we can read from .xlsx file directly.... (1 Reply)
Discussion started by: giridhar276
1 Replies
LEARN ABOUT DEBIAN
file::counterfile
CounterFile(3pm) User Contributed Perl Documentation CounterFile(3pm)NAME
File::CounterFile - Persistent counter class
SYNOPSIS
use File::CounterFile;
$c = File::CounterFile->new("COUNTER", "aa00");
$id = $c->inc;
open(F, ">F$id");
DESCRIPTION
This module implements a persistent counter class. Each counter is represented by a separate file in the file system. File locking is
applied, so multiple processes can attempt to access a counter simultaneously without risk of counter destruction.
You give the file name as the first parameter to the object constructor ("new"). The file is created if it does not exist.
If the file name does not start with "/" or ".", then it is interpreted as a file relative to $File::CounterFile::DEFAULT_DIR. The default
value for this variable is initialized from the environment variable "TMPDIR", or /usr/tmp if no environment variable is defined. You may
want to assign a different value to this variable before creating counters.
If you pass a second parameter to the constructor, it sets the initial value for a new counter. This parameter only takes effect when the
file is created (i.e. it does not exist before the call).
When you call the "inc()" method, you increment the counter value by one. When you call "dec()", the counter value is decremented. In both
cases the new value is returned. The "dec()" method only works for numerical counters (digits only).
You can peek at the value of the counter (without incrementing it) by using the "value()" method.
The counter can be locked and unlocked with the "lock()" and "unlock()" methods. Incrementing and value retrieval are faster when the
counter is locked, because we do not have to update the counter file all the time. You can query whether the counter is locked with the
"locked()" method.
There is also an operator overloading interface to the File::CounterFile object. This means that you can use the "++" operator for
incrementing and the "--" operator for decrementing the counter, and you can interpolate counters directly into strings.
COPYRIGHT
Copyright (c) 1995-1998,2002,2003 Gisle Aas. All rights reserved.
This library is free software; you can redistribute it and/or modify it under the same terms as Perl itself.
AUTHOR
Gisle Aas <gisle@aas.no>
perl v5.10.0 2004-01-23 CounterFile(3pm)