I wanted to put "|" this sign at starting and at end of every field but its not working with first field like
Currently the out put is :
abc | abc | abc |
xyz | xyz | xyz |
But I want the out put in this form:
| abc | abc | abc |
| xyz | xyz | xyz |
plz help me. (2 Replies)
hi
i am running script which contains the commmnds and i am redirecting the script output to a file.
like
./script 1> result.txt 2>&1
the above redirection is not working for commands when run in background in a script.
but the problem here result.txt containg output which is repeated.... (3 Replies)
Hi All,
OS-Type=Sun-OS 5.8 Sparc9 Processor
Can I grep the previous 4 lines and next 4 lines of a matched pattern(context grep)?
For example here we need to monitor logs of live traffic.The data obtained from "tail -f LiveTrafficData.log"
looks something like this:-... (3 Replies)
Hello Guys,
I am working on a script and using the below code to fetch the list of all repositories
CHDIR='/mnt/scm/subversion/'
repolist()
{
cd ${CHDIR}
Repo=`ls|cut -d " " -f1`
echo $Repo
}
Output of the above code is
BSB CIB COB DCI DIB DSB ESB-P ESB-TOOLS FareVerify GCACHE GWY... (15 Replies)
Below is the my cide which is working fine but I am not getting the output indesired format.there is some problem in alignment.Can someone help me to correct this?
if ];
then
summary=$(
echo -e "Please review the log file of auto coloclean utility.\n";
echo -e... (2 Replies)
currently I have process from a raw file to this stage
ALTER TABLE "EXCEL_ADMIN"."TC_TXN_VOID" ADD CONSTRAINT "PK_TC_TXN_VOID" PRIMARY KEY ("TC_TXN_IID")
ALTER TABLE "EXCEL_ADMIN"."TC_TXN_AMT" ADD CONSTRAINT "PK_TC_TXN_AMT" PRIMARY KEY ("TC_TXN_AMT_IID")
ALTER TABLE... (10 Replies)
Am in need of your help to get the desired output.
nameSECURITY.SERVICES.CONFIG:GETVALUEisPrefetchedNsAccessLast2013-09-13 10:50:13 MESTsAccessTotal1sRunningcHitLastnamePUBLIC.SERVER:INVOKEisPrefetchedNsAccessLast2013-09-17 15:02:05... (5 Replies)
Hi guys.
I have a file containing some hosts and their IPs.
host host1 192.168.2.10
host host2 192.168.2.11
host host3 192.168.2.12
I am writing a script where I want to print these values in 1 line. My script looks like
RUNTIME_NODE=`cat hosts.properties | grep host`
for i in... (7 Replies)
I am searching for a process that should be up and running. Im using the following command
ps -ef | grep elasticsearch
to get
elastic+ 1673 1 0 Jan29 ? 05:08:56 /bin/java -Xms4g -Xmx4g -Djava.awt.headless=true -XX:+UseParNewGC -XX:+UseConcMarkSweepGC... (1 Reply)
Discussion started by: Junaid Subhani
1 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)