08-30-2016
awk -F'|' 'BEGIN {OFS="|"} NR>1{{$3=0}{print}}' file_name
You will have to handle header separately.
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Hi Can any one tell me how to replace the 10th column in a file(comma delimted) with a new file with a single column. Can any one Help me out of the please as soon as possible as i am in a terribley hurry!!!!!!
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Hi All,
I have a file which has data in following format:
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$ cat log.txt
Name Age Sex Lcation nfld alias xsd
CC 25 M XYZ asx KK Y
BB 21 F XAS awe SS N
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Match column 3 in file1 to column 1 in file 2 and replace with column 2 from file2
file 1 sample
SNDK 80004C101 AT
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NETL 64118B100 BS
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abc_1 foo1@a ....
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Hi
I need to replace particular column value with blank.For eg
2016-03-21,ABC,"3,447,001"
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hi i have sample data
a,b,c,d,e,g h http://mysite.xyx
z,b,d,f,e,s t http://123124#
a,b,c,i,m,nothing
d,i,j,e,w,nothing
output expected is
a,b,c,d,e,http://mysite.xyx
z,b,d,f,e,http://123124#
a,b,c,i,m,nothing
d,i,j,e,w,nothing
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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)