Thanks -this produces exactly what I was looking for. Next, I'll try and understand the code and customize to other similar data -you've given me a great starting point.
Example output below:
Hi all,
I have a file with single white space delimited values, I want to convert them to a tab delimited file.
I tried sed, tr ... but nothing is working.
Thanks,
Rajeevan D (16 Replies)
Hi
I have 100 files each with only one column of 10 numbers that I wish to add to a new file so that I get 100 columns collected in one tab delimited file.
I tried something like:
foreach num (1 2 3)
foreach? gawk -F '\t' '{$num=$1}1' OFS='\t' Eu9_10.2patienter/pospep_10.2patient$num >>... (5 Replies)
Hi Forum
I have a tab delimited file that opens well in Openoffice calc (excel). But when I perform any operation in command line, it reads the file incorrectly. When I 'save As' the same file in office as tab delimited then it works fine.
The file that I think is tab delimited is actually... (8 Replies)
I have a file which was pipe delimited, I need to make it tab delimited. I tried with sed but no use
cat file | sed 's/|//t/g'
The above command substituted "/t" not tab in the place of pipe.
Sample file:
abc|123|2012-01-30|2012-04-28|xyz
have to convert to:
abc 123... (6 Replies)
Hi How to make tab delimited file to space delimited?
in put file:
ABC kgy
jkh ghj
ash kjl
o/p file:
ABC kgy
jkh ghj
ash kjl
Use code tags, thanks. (1 Reply)
Hi,
I need urgent help with a tab delimited file I am working on.
This is the file :
TTTT|YYYYYYY|jargon-journal|MP0000000UID||"j1, j2, j3"
I need th following output:
TTTT|YYYYYYY|jargon-journal|MP0000000UID||ji
TTTT|YYYYYYY|jargon-journal|MP0000000UID||j2... (8 Replies)
Hi, I have a rquirement in unix as below .
I have a text file with me seperated by | symbol and i need to generate a excel file through unix commands/script so that each value will go to each column.
ex:
Input Text file:
1|A|apple
2|B|bottle
excel file to be generated as output as... (9 Replies)
Hi,
I have requirement to create tab delimited file with values coming from variables.
File will contain only two columns separated by tab.
Header will be added once.
Values will be keep adding upon the script run.
If values already exists then values will be replaced.
I have done so... (1 Reply)
Hello Everyone..
I want to replace the retail col from FileI with cstp1 col from FileP if the strpno matches in both files
FileP.txt
... (2 Replies)
Discussion started by: YogeshG
2 Replies
LEARN ABOUT DEBIAN
poe::filter::grep
POE::Filter::Grep(3pm) User Contributed Perl Documentation POE::Filter::Grep(3pm)NAME
POE::Filter::Grep - select or remove items based on simple rules
SYNOPSIS
#!perl
use POE qw(
Wheel::FollowTail
Filter::Line Filter::Grep Filter::Stackable
);
POE::Session->create(
inline_states => {
_start => sub {
my $parse_input_as_lines = POE::Filter::Line->new();
my $select_sudo_log_lines = POE::Filter::Grep->new(
Put => sub { 1 },
Get => sub {
my $input = shift;
return $input =~ /sudo[d+]/i;
},
);
my $filter_stack = POE::Filter::Stackable->new(
Filters => [
$parse_input_as_lines, # first on get, last on put
$select_sudo_log_lines, # first on put, last on get
]
);
$_[HEAP]{tailor} = POE::Wheel::FollowTail->new(
Filename => "/var/log/system.log",
InputEvent => "got_log_line",
Filter => $filter_stack,
);
},
got_log_line => sub {
print "Log: $_[ARG0]
";
}
}
);
POE::Kernel->run();
exit;
DESCRIPTION
POE::Filter::Grep selects or removes items based on simple tests. It may be used to filter input, output, or both. This filter is named
and modeled after Perl's built-in grep() function.
POE::Filter::Grep is designed to be combined with other filters through POE::Filter::Stackable. In the "SYNOPSIS" example, a filter stack
is created to parse logs as lines and remove all entries that don't pertain to a sudo process. (Or if your glass is half full, the stack
only selects entries that DO mention sudo.)
PUBLIC FILTER METHODS
In addition to the usual POE::Filter methods, POE::Filter::Grep also supports the following.
new
new() constructs a new POE::Filter::Grep object. It must either be called with a single Code parameter, or both a Put and a Get parameter.
The values for Code, Put, and Get are code references that, when invoked, return true to select an item or false to reject it. A Code
function will be used for both input and output, while Get and Put functions allow input and output to be filtered in different ways. The
item in question will be passed as the function's sole parameter.
sub reject_bidoofs {
my $pokemon = shift;
return 1 if $pokemon ne "bidoof";
return;
}
my $gotta_catch_nearly_all = POE::Filter::Grep->new(
Code => &reject_bidoofs,
);
Enforce read-only behavior:
my $read_only = POE::Filter::Grep->new(
Get => sub { 1 },
Put => sub { 0 },
);
modify
modify() changes a POE::Filter::Grep object's behavior at run-time. It accepts the same parameters as new(), and it replaces the existing
tests with new ones.
# Don't give away our Dialgas.
$gotta_catch_nearly_all->modify(
Get => sub { 1 },
Put => sub { return shift() ne "dialga" },
);
SEE ALSO
POE::Filter for more information about filters in general.
POE::Filter::Stackable for more details on stacking filters.
BUGS
None known.
AUTHORS & COPYRIGHTS
The Grep filter was contributed by Dieter Pearcey. Documentation is provided by Rocco Caputo.
Please see the POE manpage for more information about authors and contributors.
perl v5.14.2 2012-05-15 POE::Filter::Grep(3pm)