i run
but didn't change. In order to be sure that i explained it correctly and don't eat your time for nothing, i want to change OD:OD to OD.OD but not touch 12:00 that is in a previous line
sorry if im not asking inthe right spot but, how do you turn the beeping off every time you hit a key onthe keyboard. I tried the click -n but it told me it didnt recognize click
any help would be greatly appreciated ( the beeping is not going over well in the surrounding cubicles)
thank you... (4 Replies)
hey all, I have repeatedly seen scripts containing the following syntax,
grep "hello" $myfile >> $log 2>&1
can anyone explain exactly what "2>&1" mean? THANK YOU (4 Replies)
I am taking a db classes toward oracle 10g. I am taking unix as well . I need to know what is the best option for os . should I use linux fedora. or get a sun box and start learning from there. Thanks (6 Replies)
Hello... I wanted to figure out how to remove the 1st instance of a comma from a file..
100+ line file
-------------
'test1'
,'dudes are cool' <-- remove comma from first instance of comma in file
,'cool dude'
,'bbbbbb'
I tried everything from
cat jigar|tr , >1.txt to cat jigar|sed... (2 Replies)
Hello everyone,
Just started UNIX today! In our school we use solaris. I just want to know how do I setup Solaris 10 not the GUI one, the one where you have to type the commands like ECHO, ls, pwd, etc... I have windows xp and I also have vmware.
I hope I am not missing anything! :p (4 Replies)
Hello everyone,
I am having to do a lot of perl scripting these days and I am learning a lot.
I have this problem
I want to move files from a folder and all its sub folders to one parent folder, they are all .gz files..
there is folder1\folder2\*.gz
and there are about 50 folders... (1 Reply)
Hi all,
I am sure this is very simple but I cant quite get it.
I am trying to search textfile1.txt for a string then take the results of the search and append the result to textfile3.txt
So far I have used
$ find file1.txt -exec grep "string i am looking for" '{}' \; -print
this... (2 Replies)
I was looking through some code online and came accross this...
ls *.txt | grep text1 | cat file1 – file2 | `echo wc –l`
I know what "ls|grep text1" does and I know a word count gets echoed but beyond that I am confused. Please use layman terms as much as possible as I am a newbie. (8 Replies)
hi all:
i am trying to use sed to separate hex bytes "363834574e292c20" to "36 38 34 57 4e 29 2c 20". i used the following script (googled) and i got "3 63 83 45 74 e2 92 c2 0".
how could i modify the script to meet my needs?
thanks (8 Replies)
Discussion started by: ipfreak
8 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)