Can anyone explain to me why the first line doesn't work and the second seems to work fine. I am trying to find all occurances of text within a certain column (col 13) that start with the character V, I suppose it sounds simple but I have tried using the following but don't really understand what... (2 Replies)
Hi
Running a specific nawk statement over a 17m lines files returns the following:
/bin/nawk: not enough args in .....
input record number 1,25955e+06, file test.1
source line number 1
I'd like to report the line number (in bold above) in decimal not floating so that i can spot it out.
... (1 Reply)
Hi
Running a specific nawk statement over a 17m lines files returns the following:
/bin/nawk: not enough args in .....
input record number 1,25955e+06, file test.1
source line number 1
I'd like to report the line number (in bold above) in decimal not floating so that i can spot it out.
... (1 Reply)
Hi all,
I can run the following script using nawk..However, I find that teh server dun support nawk.. May I know how to change teh script to use awk such that it will work? Very urgent.. thx!
nawk 'BEGIN {FS=OFS=","}
NR==FNR{arr=$2;next}
$0 !~ "Documentation"{print $0;next} ... (2 Replies)
Hi Guys,
i tried these two commands. First in awk and nawk.
The nawk command is running fine but the awk command is throwing error.
What is wrong with the awk command. There are lot of awk commands running fine in my system
d003:/usr/local/dsadm/dsprod>nawk 'NR = 1 {print " "$0}' a.txt
... (6 Replies)
Hi everyone,
i am new to unix , so i want to know what is the use of awk and nawk.
because in most of the place this cmds were used.
so, if anyone provied the basic idea of this cmds, it will be much helpfull for me . . ..
Thnks in Advance :) (9 Replies)
Hi Guys,
I am in need of some help; I have an xml message file which contains personal details as shown below:
, message=, message=, message=, message=, message=, message=
I want to use nawk to parse these xml messages but I am new to awk and nawk.
What I want is to get output... (7 Replies)
Discussion started by: James_Owen
7 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)