is it possible to execute multiple search with grep???
grep criteria1 criteria2 file
something like this...
I know other way:
grep pattern1 file-name1 > results-file
grep pattern2 file-name1 >> results-file
cat results-file
but can it be done with one grep???? (5 Replies)
Hi frnds
i want to desplay file names that should be word1 and word2
ex :
i have 10 *.log files
5 files having word1 and word2
5 files having only word1,
i have used below command
egrep -l 'word1|word2' *.log
its giving all 10 files, but i want to display only 5... (20 Replies)
Hi All,
I am trying to search multiple lines in file using grep /sed.And i cant seem to make it work.
The File looks like this
5012001,100,AUTOBATCH,FEE,DAILYFEE,0,0
4241 SERVICE DENIED
5012002,100,AUTOBATCH,FEE,DAILYFEE,0,0
4241 SERVICE DENIED... (6 Replies)
Dear All,
I have a file containing info like
TID:0903 asdfasldjflsdjf
TID:0945 hjhjhkhkhkh
TID:2045 hjhjhkhkhkh
TID:1945 hjhjhkhkhkh
TID:2045 hjhjhkhkhkh
I need to show only lines containing
TID:0903 asdfasldjflsdjf
TID:0945 hjhjhkhkhkh
TID:2045 hjhjhkhkhkh
TID:2045 hjhjhkhkhkh
... (11 Replies)
Grep -e 'term1' -A1 -e 'term2' -A3The above code always searches for either term and prints results + next three lines.
I'm trying to print out:
foo foo foo term1 bar bar bar
line right after the above
--
la la la la term2 so so so
line right after the above
and again
and again
I've... (7 Replies)
Hi all,
I'll like to search a list of tems in a huge file and then output each of the terms to individual files. I know I can use grep -f list main.file to search them but how can I split the output into individual files? Thank you. (6 Replies)
Hi,
Whether we can search multiple strings using or in grep -F
In Generally,
grep -F "string1" "filename.txt"
How to search for multiple string using grep -F as we using grep
grep "string1\|string2" "filename.txt"
Regards,
Nanthagopal A (10 Replies)
I have a flat file that looks like this, let's call it Chromosome_9.txt:
FT /Gene_Name="Guanyl-Acetylase 9"
FT /Gene_Number"36952"
FT /Gene_Name="Endoplasmic Luciferase"
FT /Gene_Number"36953"
FT ... (4 Replies)
I'm trying to find a way to search a range of similar words in a file. I tried using sed but can't get it right:sed 's/\(ca01\)*//'It only removes "ca01" but leaves the rest of the word. I still want the rest of the information on the lines just not these specific words listed below. Any... (3 Replies)
Lets say I have a massive directory which is filled with other directories all filled with different c++ scripts and I want a listing of all the scripts that contain the string: "this string". Is there a way to use a grep search for that? I tried:
grep -lr "this string" *
but I do not... (3 Replies)
Discussion started by: Circuits
3 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)