Can I find wether a particular file exist and size greater than zero in one line command.
similar to this
if &&
something in one if test .... e.g. if
1.) is it possible ? ... if yes how
2.) what would be the return type in case there is success or failure. I mean if both are... (4 Replies)
Hello,
I have the following problem. I know there is a file somewhere on a UNIX machine that contains a string, but I don't know where.
With the "grep" command, I can look into a file but only if I'm located in the correct directory.
With the "find" command, I can search across directories... (2 Replies)
I need to find whether there is a file named vijay is there or not in folder named "opt" .I tried "ls *|grep vijay" but it showed permission problem.
so i need to use find command (6 Replies)
Hello fellow UNIX fans,
I'm running AIX 4.3 and getting an error message “cp: /a/file2.db: A file or directory in the path does not exist” when I run the following command:
cp /b/file.db /a/file2.db
It stops every time about 95% of the way through the copy process at 1,073,741,312 bits. ... (3 Replies)
HI folks,
can any one tell me how to check whether the file is existed in a directory or not .
let me tell you my requirement : if the file is existed i should display a one message or else i have to send a mail ..
i have the mail logic .. but I'm failed to check file existence .. please... (5 Replies)
Hello,
i want to script on sh to check from a path if the directory exist and isn't empty.
I explain:
path is : /aaa/bbb/ccc/ccc_name/ddd/
Where the cccc_name is in a list, so i think it's $1
My command
find -name /aaa/bbb/ccc/$1/ddd/ didn't work because my $1 is the same and not... (5 Replies)
I'm brand new to AIX and I looked up how to print this file and it was working but now I'm not able to do it all of a sudden. the file name is rom1.txt so this is what i wrote in the command line and I know I'm in the right directory. In bold is what I seem to be messing up with.
prod @ root... (3 Replies)
How to get a file 'zlib.h' in an entire directory with an excluded directory specified lives under that starting directory by using find command, as it failed on:
$ find . -name 'zlib.h' -a -ipath 'CHROME.TMP' -prune -o -print
it'll just list entirely up (2 Replies)
Discussion started by: abdulbadii
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)