first thanks for all your suggestions. This forum it is very useful.
I have a question. Is it possible to read from the last line a file was closed. For example, imagine that i've got a file with a LOT of timestamps :
and i need to read it in block of 70 lines each time, BUT since the file is updating quite fast i need to return to read it form the last (awk?) command without missing any line.
i don't know itf i render the idea or if it's possible. Maybe i need a program instead.
Anyone know of a guide or instructions for Solaris
I got to configure a SBUS HBA to talk to a tape robot.
I have done this on a switch but not point to point.
just going HBA >>>>> TAPE Fibre simple two nodes
Kie (6 Replies)
Hi the following c-code utilizing the 'read()' man 2 read method cant read in files larger that 2gig.
Hi I've found a strange problem on ubuntu64bit, that limits the data you are allowed to allocate on a 64bit platform using the c function 'read()'
The following program wont allow to allocate... (14 Replies)
Hi Guys,
Happy New Year to you all!
I have a requirement to read an embedded new-line using KSH's read builtin.
Here is what I am trying to do:
run_sql "select guestid, address, email from guest" | while read id addr email
do
## Biz logic goes here
done
I can take care of any... (6 Replies)
Hello All,
i am a newbie and need some help when reading a csv file in a bourne shell script. I want to read 10 lines, then wait for a minute and then do a reading of another 10 lines and so on in the same way. I want to do this till the end of file.
Any inputs are appreciated
... (3 Replies)
Hi
I am new to writing script and want to use a Bash Piped while-read and read from user input.
if something happens on server.log then do while loop or if something happend on user input then do while loop.
Pseudocode something like:
tail -n 3 -f server.log | while read serverline || read... (8 Replies)
hi,
I would like to ask or is it possible to dump a hex using dd from starting point to end point just like the "xxd -s 512 -l 512 <bin file>"
I know the redirect hexdump -C but i can't figure it out the combination options of dd.
Hope someone can share their knowledge..
Thanks in... (3 Replies)
For my backup , I mount and external hard disk to /mnt/mybackup and then I do an rsync to /mnt/mybackup
If for some reason the rsync fails, I want to prevent it from writing data on the server hard disk itself since the external hard disk will no longer be mounted on it.
I want /mnt/mybackup... (8 Replies)
Hi.
How can I create a history function? (By "read" command or so)
&
How can I configure a read command so that the arrow keys are not displayed so funny? (^[[A)
Thanks in advance. (4 Replies)
Hi again,
first thanks for all your suggestions. This forum it is very useful.
I have a question. Is it possible to read from the last line a file was closed. For example, imagine that i've got a file with a LOT of timestamps :
1467387616.868717770
1467387616.874189609... (1 Reply)
How to create a new mount point with 600GB and add 350 GBexisting mount point
Best if there step that i can follow or execute before i mount or add diskspace IN AIX
Thanks (2 Replies)
Discussion started by: Thilagarajan
2 Replies
LEARN ABOUT DEBIAN
io::async::protocol::linestream
IO::Async::Protocol::LineStream(3pm) User Contributed Perl Documentation IO::Async::Protocol::LineStream(3pm)NAME
"IO::Async::Protocol::LineStream" - stream-based protocols using lines of text
SYNOPSIS
Most likely this class will be subclassed to implement a particular network protocol.
package Net::Async::HelloWorld;
use strict;
use warnings;
use base qw( IO::Async::Protocol::LineStream );
sub on_read_line
{
my $self = shift;
my ( $line ) = @_;
if( $line =~ m/^HELLO (.*)/ ) {
my $name = $1;
$self->invoke_event( on_hello => $name );
}
}
sub send_hello
{
my $self = shift;
my ( $name ) = @_;
$self->write_line( "HELLO $name" );
}
This small example elides such details as error handling, which a real protocol implementation would be likely to contain.
DESCRIPTION EVENTS
The following events are invoked, either using subclass methods or CODE references in parameters:
on_read_line $line
Invoked when a new complete line of input is received.
PARAMETERS
The following named parameters may be passed to "new" or "configure":
on_read_line => CODE
CODE reference for the "on_read_line" event.
METHODS
$lineprotocol->write_line( $text )
Writes a line of text to the transport stream. The text will have the end-of-line marker appended to it; $text should not end with it.
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.14.2 2012-10-24 IO::Async::Protocol::LineStream(3pm)