Hi all,
My boss wants me to find out how often e-m users are accessing their account:confused:. The mail server keeps log of all logins. I want to use grep the 'usernames', but it should come out the moment it first encounters the username in the log. Can I do that? I want to avoid 10+ greps... (2 Replies)
Hello every one, I have read a little about SED and GREP but I do not know how to do this:
Using SED or GREP:
"reverse all three letter words"
"replace the last two digits in any string of digits by zeros (0)"
"remove lines that start and end with the same word"
and I have more like... (5 Replies)
I have the data file:
A
1
2
3
BBB
4
5
6
A
7
8
9
I want to grep "A" then-skip a line-then-add two sublines:
I my command:
grep +3 "A" datafile (8 Replies)
Hi,
Is it possible to display a specific number of lines starting from a line having a particular text using grep command?
e.g. I have a text file with the contents below:
AAA
BBB
CCC
DDD
EEE
FFF
I want to display 3 lines starting with the line having "BBB" to get the result below:... (11 Replies)
Hi guys. I need to filter some values from a number of log files. One of the files is:
Interconnect Utilisation Results:
Achieved Maximum Number of Concurrent Connections: 17
Statistics for Average Number of Concurrent Connections:
Point Estimation: Confidence Interval: ... (2 Replies)
This was mistaken as homework in a different forum, but is not. These are questions that are close to what I am trying to do at work.
QUESTION1:
How do you grep only an exact string. I am using Solaris10 and do not have any GNU products installed.
Contents of car.txt
CAR1_KEY0
CAR1_KEY1... (1 Reply)
I have different things that I was trying to do but am kind of struggling with this since I'm a Linux noob. The backround is that I have two files with student names in the same directory, and each file lists the student name, their major and their grade level. What is the most efficient way to... (6 Replies)
Hi. I have a txt file. I need to make a copy of the lines which are beginning with a mobile phone number, or a fix phone number. I have to copy thoose lines in numbers.txt, after that i have to delete then from the originally file. In numbers.txt i need to write a prefix before each number. if the... (1 Reply)
1. The problem statement, all variables and given/known data:
So i'll probably get told off for this but I have a few problems and rather than clog up the whole forum I'll post them here. Please bare in mind I am a complete novice when it comes to all this and so if you help please treat me like a... (4 Replies)
Discussion started by: jamesb18
4 Replies
LEARN ABOUT DEBIAN
mail::mbox::messageparser::grep
Mail::Mbox::MessageParser::Grep(3pm) User Contributed Perl Documentation Mail::Mbox::MessageParser::Grep(3pm)NAME
Mail::Mbox::MessageParser::Grep - A GNU grep-based mbox folder reader
SYNOPSIS
#!/usr/bin/perl
use Mail::Mbox::MessageParser;
my $filename = 'mail/saved-mail';
my $filehandle = new FileHandle($filename);
my $folder_reader =
new Mail::Mbox::MessageParser( {
'file_name' => $filename,
'file_handle' => $filehandle,
'enable_grep' => 1,
} );
die $folder_reader unless ref $folder_reader;
# Any newlines or such before the start of the first email
my $prologue = $folder_reader->prologue;
print $prologue;
# This is the main loop. It's executed once for each email
while(!$folder_reader->end_of_file());
{
my $email = $folder_reader->read_next_email();
print $email;
}
DESCRIPTION
This module implements a GNU grep-based mbox folder reader. It can only be used when GNU grep is installed on the system. Users must not
instantiate this class directly--use Mail::Mbox::MessageParser instead. The base MessageParser module will automatically manage the use of
grep and non-grep implementations.
METHODS AND FUNCTIONS
The following methods and functions are specific to the Mail::Mbox::MessageParser::Grep package. For additional inherited ones, see the
Mail::Mbox::MessageParser documentation.
$ref = new( { 'file_name' => <mailbox file name>, 'file_handle' => <mailbox file handle> });
<file_name> - The full filename of the mailbox
<file_handle> - An opened file handle for the mailbox
The constructor for the class takes two parameters. The file_name parameter is the filename of the mailbox. The file_handle argument is
the opened file handle to the mailbox.
Returns a reference to a Mail::Mbox::MessageParser object, or a string describing the error.
BUGS
No known bugs.
Contact david@coppit.org for bug reports and suggestions.
AUTHOR
David Coppit <david@coppit.org>.
LICENSE
This software is distributed under the terms of the GPL. See the file "LICENSE" for more information.
HISTORY
This code was originally part of the grepmail distribution. See http://grepmail.sf.net/ for previous versions of grepmail which included
early versions of this code.
SEE ALSO
Mail::Mbox::MessageParser
perl v5.10.1 2009-08-09 Mail::Mbox::MessageParser::Grep(3pm)