Hi,
I would like to ask if there is any method to grep a chuck of lines based on the latest file in a directory.
E.g
Latest file in the directory:
Line 1: 532243
Line 2: 123456
Line 3: 334566
Line 4: 44567545
I wanted to grep all the line after line 2 i.e. Line 3 and line 4 and... (5 Replies)
I have to grep on a few words in a file and then display the line containing those words and the line above it.
For ex -
File1.txt contains...
abc xyz abc
This is a test
Test successful
abc xyz abc
Just a test
Test successful
I find the words 'Test successful' in the file... (6 Replies)
Hi Friends,
I have a file which has many of the statements like below
******** MAKING > noun1 < cg_all
statements
statements
statements
********* MAKING > noun2 < cg_all
statements
statements
statements
********* MAKING > noun3 < all
statements
statements
statements
I would... (3 Replies)
Hi,
I have one file, say file 1, that has data like below where 19900107 is the date,
19900107 12 144 129 0.7380047
19900108 12 168 129 0.3149017
19900109 12 192 129 3.2766666E-02
... (3 Replies)
Sample File
abc
xyz
def
abc
ggh
abc
xyz
I just created a sample file above to show what I need. I need to grep two lines. e.g abc and xyz(only if they are one after the other) so output would be
abc
xyz
abc
xyz
(note abc followed by ggh line would not come out in the output). I... (9 Replies)
Hello. How does one grep lines in a file that have only one field?
AAA BBB CCC
DDD
AAA CCC
Is is possible to grep "DDD" becuase it has only one field?
Thanks.
---------- Post updated at 08:03 PM ---------- Previous update was at 07:25 PM ----------
I found it, thank you!
awk 'NF... (2 Replies)
Hi guys,
This is probably very easy but I've no idea how to pull this out.
Basically, I need to find errors into a very large logfile. When you grep the ID, the output is like this:
+- Type: 799911 Code: Ret: 22728954 Mand: X Def: Des: UserDes: SeqNo: 2
+- Type: 799911 Code: Ret:... (5 Replies)
Hi all,
I have two files.
File A looks like this:
abkhasian com|hum
accent com|com|com|com|sta
acceptation act|com|sta
adventures com|hum
adversity com|hum|hum
and File B looks like this:
adventure
adventures
adversary
Adverse
adversity
I want to print those lines in File A... (9 Replies)
Discussion started by: owwow14
9 Replies
LEARN ABOUT SUSE
mail::mbox::messageparser::grep
Mail::Mbox::MessageParser::Grep(3) User Contributed Perl Documentation Mail::Mbox::MessageParser::Grep(3)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 v5.12.1 2009-08-09 Mail::Mbox::MessageParser::Grep(3)