I have a file which is 5 million records. And each records has 412 fields has delimited by "|". So that makes each records to be 2923 bytes long. I wanted to extract specific records like top 100 or 2500 - 5000, 50001 - 10000 etc. from this file.
I tried using head command for top 100 records,... (1 Reply)
suppose u have a file which consist of many data points separated by asterisk
Question is to extract third part in each line .
0.0002*0.003*-0.93939*0.0202*0.322*0.3332*0.2222*0.22020
0.003*0.3333*0.33322*-0.2220*0.3030*0.2222*0.3331*-0.3030
0.0393*0.3039*-0.03038*0.033*0.4033*0.30384*0.4048... (5 Replies)
hi,
I have a log file , which is appending with current data
i need the extarct which is updated from last 30 minutes
the format of the date is Jun 18, 2008 8:59:18 AM
how can i subtract 30 mins from the current date
thanks
Tarun. (5 Replies)
Hi
I am running a 'grep' command to retrieve a line from the file. The problem is that I also need 21 lines which go right after the line I just 'grep'(ed)
Is there a way to retrieve this block of data? Thanks -A (4 Replies)
Ok, I have some experience with awk, but I haven't touched it for years ... back again and I have one problem.
I have large char file, it has hundreds of major text blocks. First, I need to grab and process those, and ignore everything else. That bit is simple.
Within those major text... (5 Replies)
Ladles and Jellyspoons,I am trying to use, unsucessfully I might add, awk to strip a large block of information from and audit output.The format resembles the following:-----------------------------------------------------------Event: execveTime: ... (3 Replies)
Hi,
I was trying a script to cature all data between 12-05-09 06:00:00 to 12-05-09 23:59:59 from a huge file. (i.e. Skip all data between 00:00:00 to 05:59:59)
TOKEN-1 12-05-09 00:00:00 MAIPR no_OMDB_key #000995 >
..
..
..
TOKEN-1 12-05-09 06:00:00 TRUNK 358 #04988 >
..
..
TOKEN-1 12-05-09... (2 Replies)
Experts ,
Below is the data:
--- Physical volumes ---
PV Name /dev/dsk/c1t2d0
VG Name /dev/vg00
PV Status available
Allocatable yes
VGDA 2
Cur LV 8
PE Size (Mbytes) 8
Total PE 4350
Free PE 2036
Allocated PE 2314
Stale PE 0
IO Timeout (Seconds) default
--- Physical volumes ---... (5 Replies)
Hi All,
Iam unable to print the below block and getting the error.Can anyone please help me in this.
Input Data
eaits001z$ echo "-------LINENO_JOBID_VAL--------${LINENO_JOBID_VAL}---"
-------LINENO_JOBID_VAL--------58167|253473 58169|253473 58171|253473 58179|253473 58180|253473 58181|257311... (9 Replies)
Discussion started by: cskumar
9 Replies
LEARN ABOUT DEBIAN
poe::filter::block
POE::Filter::Block(3pm) User Contributed Perl Documentation POE::Filter::Block(3pm)NAME
POE::Filter::Block - translate data between streams and blocks
SYNOPSIS
#!perl
use warnings;
use strict;
use POE::Filter::Block;
my $filter = POE::Filter::Block->new( BlockSize => 8 );
# Prints three lines: abcdefgh, ijklmnop, qrstuvwx.
# Bytes "y" and "z" remain in the buffer and await completion of the
# next 8-byte block.
$filter->get_one_start([ "abcdefghijklmnopqrstuvwxyz" ]);
while(1) {
my $block = $filter->get_one();
last unless @$block;
print $block->[0], "
";
}
# Print one line: yz123456
$filter->get_one_start([ "123456" ]);
while(1) {
my $block = $filter->get_one();
last unless @$block;
print $block->[0], "
";
}
DESCRIPTION
POE::Filter::Block translates data between serial streams and blocks. It can handle fixed-length and length-prepended blocks, and it may
be extended to handle other block types.
Fixed-length blocks are used when Block's constructor is called with a BlockSize value. Otherwise the Block filter uses length-prepended
blocks.
Users who specify block sizes less than one deserve what they get.
In variable-length mode, a LengthCodec parameter may be specified. The LengthCodec value should be a reference to a list of two functions:
the length encoder, and the length decoder:
LengthCodec => [ &encoder, &decoder ]
The encoder takes a reference to a buffer and prepends the buffer's length to it. The default encoder prepends the ASCII representation of
the buffer's length and a chr(0) byte to separate the length from the actual data:
sub _default_encoder {
my $stuff = shift;
substr($$stuff, 0, 0) = length($$stuff) . "