Thanks for you reply, sorry should of explained that the ___'s represent spaces where I'd like the ouptut to go! also the ouput seems to add a new line character after the looked up reference:
Many thanks for your help, know very little about awk!
I want to pass arguments to a sh program and I want to use these arguments in the program as variables?
Will I use argc and argv in a main function can anyone around me write the full code please
for example when I write in th command
sh myprogram.sh argument1 argument2
I want to use... (1 Reply)
Write a nawk script that will produce the following report:
***FIRST QUARTERLY REPORT***
***CAMPAIGN 2004 CONTRIBUTIONS***
-------------------------------------------------------------------------
NAME PHONE Jan | ... (5 Replies)
Write a quick shell snippet to find all of the IPV4 IP addresses
in any and all of the files under /var/lib/output/*, ignoring
whatever else may be in those files. Perform a reverse lookup on
each, and format the output neatly, like "IP=192.168.0.1,
... (0 Replies)
Hi,
I am in /home/development/project/abc directory. Now I want to remove one file which is kept in /trial/dev/<file> directory.
I would like to do it in one command.
I tried changing directory in one command like:
pwd
/home/development/project/abc
cd ~/trial/dev/
bash: no command... (2 Replies)
Friends
Greetings. I have a RedHat 5.7 64bit virtual server on VMware ESXi 4.1. This server and other Redhat Servers are running very slow. I did some stats collection on ESXi and looks like Linux is holding the disk IO. I am not sure what is causing this behavior.
On Linux I checked the CPU... (4 Replies)
Hello everyone!
I am new here and by new i don't mean only in this place, but in this shell scripting area. I started learning about Operation Systems only 2 months ago.
I want to learn more but i found a problem which I don't really know how to solve. :confused:
I have a directory with 4... (2 Replies)
Hi guys,
one of my services in solaris 10 is in maintenance mode. When I checked why, the reason is that the service is "restarting too quickly."
# svcs -x svc:/application/management/snmpdx:default
svc:/application/management/snmpdx:default (Sun Solstice Enterprise Master Agent)
State:... (2 Replies)
Hi,
This is for Perl.
I have a while loop, and would like to process two files, the formats are given below :
access
access.<previousday>-*
How can perform a while loop on both logs, while creating the logic for access.<previousday>-* to get format like "access.20130615-124139" when... (11 Replies)
Hi,
I need help in UNIX shell script to handle the following:
I have file called File1.txt which contains data something like below:
LibraryName|BookName|Flag-Indicator|COUNT
LIB1|BOOK1|A|12
LIB1|BOOK1|A|2
LIB2|BOOK2|I|1
LIB2|BOOK1|I|4
LIB1|BOOK2|A|12
LIB1|BOOK1|I|22... (3 Replies)
Discussion started by: vfrg
3 Replies
LEARN ABOUT DEBIAN
io::async::signal
IO::Async::Signal(3pm) User Contributed Perl Documentation IO::Async::Signal(3pm)NAME
"IO::Async::Signal" - event callback on receipt of a POSIX signal
SYNOPSIS
use IO::Async::Signal;
use IO::Async::Loop;
my $loop = IO::Async::Loop->new;
my $signal = IO::Async::Signal->new(
name => "HUP",
on_receipt => sub {
print "I caught SIGHUP
";
},
);
$loop->add( $signal );
$loop->run;
DESCRIPTION
This subclass of IO::Async::Notifier invokes its callback when a particular POSIX signal is received.
Multiple objects can be added to a "Loop" that all watch for the same signal. The callback functions will all be invoked, in no particular
order.
EVENTS
The following events are invoked, either using subclass methods or CODE references in parameters:
on_receipt
Invoked when the signal is received.
PARAMETERS
The following named parameters may be passed to "new" or "configure":
name => STRING
The name of the signal to watch. This should be a bare name like "TERM". Can only be given at construction time.
on_receipt => CODE
CODE reference for the "on_receipt" event.
Once constructed, the "Signal" will need to be added to the "Loop" before it will work.
AUTHOR
Paul Evans <leonerd@leonerd.org.uk>
perl v5.14.2 2012-10-24 IO::Async::Signal(3pm)