I originally had a shell script that did a grep 10 times to pull out the number of times a certain pattern occured in a file: ie...
aOccurances=`grep aPattern file|wc -l`
bOccurances=`grep bPattern file|wc -l`
...
...
...
fOccurances=`grep fPattern file|wc -l`
As the file got bigger with... (0 Replies)
Hi All,
Can someone please help me write a script for the following requirement in awk, grep, sed or perl.
Buuuu xxx bbb
Kmmmm rrr ssss uuuu
Kwwww zzzz ccc
Roooowwww eeee
Bxxxx jjjj dddd
Kuuuu eeeee nnnn
Rpppp cccc vvvv cccc
Rhhhhhhyyyy tttt
Lhhhh rrrrrssssss
Bffff mmmm iiiii
Ktttt... (5 Replies)
Hi
i want to search two pattern on same line and replace onther pattern..
INPut file
aaaa bbbbb nnnnnn ttttt
cccc bbbbb nnnnnn ppppp
dddd ccccc nnnnnn ttttt
ffff bbbbb oooooo ttttt
now i want replace this matrix like.. i want search for "bbbbb","nnnnnn" and search and replace for... (4 Replies)
Hi All,
I have a .TSV extension file having ~1 Gig data and I need to grep a pattern in that file using perl. I am not able to read the file using perl any suggestions on this/ If I Change the format my data gets mismangled so I am bothered about using specific format as well.
#!... (3 Replies)
Hi,
When we have a failure, sometimes we just step restart the job from the next step. Later when we open the log for analysis of the failure, it is becoming difficult to go to the failure part.
For eg., if it is a 1000 line log, the failure may be at 500th line. so wat i want to do is, grep... (6 Replies)
Hi,
I have got the below requirement. please suggest.
I have a file like,
Processing Item is:
/data/ing/cfg2/abc.txt
/data/ing/cfg3/bgc.txt
Processing Item is:
/data/cmd/for2/ght.txt
/data/kernal/config.klgt.txt
I want to process the above file to get the output file like,
... (5 Replies)
Hi ,
I have a file where i have modifed certain things compared to original file . The difference of the original file and modified file is as follows.
# diff mir_lex.c.modified mir_lex.c.orig
3209c3209
< if(yy_current_buffer -> yy_is_our_buffer == 0) {
---
>... (5 Replies)
Hi all!
Thanks for taking the time to view this!
I want to grep out all lines of a file that starts with pattern 1 but also does not match with the second pattern.
Example:
Drink a soda
Eat a banana
Eat multiple bananas
Drink an apple juice
Eat an apple
Eat multiple apples
I... (8 Replies)
Discussion started by: demmel
8 Replies
LEARN ABOUT DEBIAN
mail::mbox::messageparser::cache
Mail::Mbox::MessageParser::Cache(3pm) User Contributed Perl Documentation Mail::Mbox::MessageParser::Cache(3pm)NAME
Mail::Mbox::MessageParser::Cache - A cache-based mbox folder reader
SYNOPSIS
#!/usr/bin/perl
use Mail::Mbox::MessageParser;
my $filename = 'mail/saved-mail';
my $filehandle = new FileHandle($filename);
# Set up cache
Mail::Mbox::MessageParser::SETUP_CACHE(
{ 'file_name' => '/tmp/cache' } );
my $folder_reader =
new Mail::Mbox::MessageParser( {
'file_name' => $filename,
'file_handle' => $filehandle,
'enable_cache' => 1,
} );
die $folder_reader unless ref $folder_reader;
warn "No cached information"
if $Mail::Mbox::MessageParser::Cache::UPDATING_CACHE;
# 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 cached-based mbox folder reader. It can only be used when cache information already exists. Users must not
instantiate this class directly--use Mail::Mbox::MessageParser instead. The base MessageParser module will automatically manage the use of
cache and non-cache implementations.
METHODS AND FUNCTIONS
The following methods and functions are specific to the Mail::Mbox::MessageParser::Cache 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. file_name is the filename of the mailbox. This will be used as the cache key, so
it's important that it fully defines the path to the mailbox. The file_handle argument is the opened file handle to the mailbox. Both
arguments are required.
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::Cache(3pm)