Coolbhai,
If the way your application was designed, it is appending to the file
each microsecond, you must take the risk of loosing some data whenever
you refresh the log file.
If you are appending, then if the file does not exist, the append
will create it.
Here is one possible solution if you want to save the file:
If you do not want to save:
Hello,
I want to clear or modify a line of a file. It is possible by
cat filename | sed '3d'
for example. But If I want "3" to be a variable?
I can't do sed '$var d'
Help me please
Thank you very much (1 Reply)
I have a log file on our system which fills up with lines that have been timestamped, as follows....
03/03/2008 10:56:06:815] (ERROR) balance: continuing session to genapp02 : 18500
03/03/2008 10:56:06:820] (ERROR) balance: continuing session to genapp02 : 18500
03/03/2008 10:56:07:003]... (2 Replies)
Hello,
I have a script which creates a certain text file.
Whenever I call it, I need to recreate this file, because I have no need in the previous content.
So I thought to remove the file every time I call the script, and that way I am sure that the previous content will not interrupt me.... (2 Replies)
Dear Friends ,
From 'last' or 'lastlog' command , I can get the last login informations of the users . now as a system admin , If I want to delete the log information from this 'last' 'lastog' command , then is it possible to do ?
plz inform ... ... (1 Reply)
Hi,
I have a script which will use an input.txt file as an input file.
I am providing data to this input file in the script and once the script is executed, I want to clear all the contents of this file as during the second time use of this script, I'll be appending the data in this input... (5 Replies)
proc get_view_rel_str { } {
set cc_view :] end]]
puts $cc_view
set a
puts $a
set a end]]
puts $a
set a
puts $a
set a
puts $a
set a
puts $a
}
get_view_rel_str
this is a script in tcl with clearcase view (1 Reply)
Hi,
I have a file with 15 fields seperated by '|'. The requirement is to clear the last 5 characters of the 14th field. modifications should be done to the original file .
Can some one help me in sorting this out. (2 Replies)
Discussion started by: sureshk_85
2 Replies
LEARN ABOUT DEBIAN
log::agent::message
Agent::Message(3pm) User Contributed Perl Documentation Agent::Message(3pm)NAME
Log::Agent::Message - a log message
SYNOPSIS
require Log::Agent::Message;
my $msg = Log::Agent::Message->make("string");
$msg->prepend("string");
$msg->append("string");
my $copy = $msg->clone;
print "Message is $msg
"; # overloaded stringification
DESCRIPTION
The Log::Agent::Message class represents an original log message (a string) to which one may prepend or append other strings, but with the
special property that prepended strings aggregate themselves in FIFO order, whilst appended strings aggregate themselves in LIFO order,
which is counter-intuitive at first sight.
In plain words, this means that the last routine that prepends something to the message will get its prepended string right next to the
original string, regardless of what could have been prepended already. The behaviour is symetric for appending.
INTERFACE
The following routines are available:
append($str)
Append suppled string $str to the original string (given at creation time), at the head of all existing appended strings.
append_last($str)
Append suppled string $str to the original string (given at creation time), at the tail of all existing appended strings.
clone
Clone the message. This is not a shallow clone, because the list of prepended and appended strings is recreated. However it is not a
deep clone, because the items held in those lists are merely copied (this would matter only when other objects with overloaded
stringification routines were supplied to prepend() and append(), which is not the case today in the basic Log::Agent framework).
make($string)
This is the creation routine.
prepend($str)
Prepend supplied string $str to the original string (given at creation time), at the tail of all existing prepended strings.
prepend_first($str)
Prepend supplied string $str to the original string (given at creation time), at the head of all existing prepended strings.
stringify
This is the overloaded "" operator, which returns the complete string composed of all the prepended strings, the original string, and
all the appended strings.
AUTHOR
Raphael Manfredi <Raphael_Manfredi@pobox.com>
SEE ALSO Log::Agent(3).
perl v5.10.0 2002-03-09 Agent::Message(3pm)