Hi,
I'm new to unix and i am kind of familiar with the basic commands.
can anyone suggest some good books especially for AWK scripting and SHELL scripting
thanks,
Hari (2 Replies)
I have a text file in which the text has been divided into paragraphs (two line breaks or tab marks a new paragraph) and I want to make a script which output would delete line breaks within the paragraph and the different paragraphs would be separated by two line breaks.
So, if my input file... (14 Replies)
Hi,
I am trying to understand what is happening here, new to scripting: I have a couple of these, but if I knew what was going on in one I can figure out the rest:
awk '/rpc-100083/ { $2 = "enable -r" }
$3 ~ /.NOS99dtlogin/ { $t = $2; $2 = $3; $3 = $t }
{ print }' /var/svc/profile/upgrade... (2 Replies)
Hi
I have 2 files of large size( 10 Miilions) , i want to join 2 files based on some condition .
for this taking lot of time and 100 cpu .i want to iterate the based on some value (like 1 lakh)
I put the 2 files in the associative arrays . if the array limit reaches the 1 lach join the with... (2 Replies)
Hi Experts,
I am adding a column of numbers with awk , however not getting correct output:
# awk '{sum+=$1} END {print sum}' datafile
2.15291e+06
How can I getthe output like : 2152910
Thank you..
# awk '{sum+=$1} END {print sum}' datafile
2.15079e+06 (3 Replies)
Hi, i am newbie to this site and hope to learn but problem is s but need help urgently.
Plz pm me if you are good at this.
Help will be appreciated. (11 Replies)
Hi,
This is the first time I am working with awk and I am not familiar with any commands in it. But I managed to do most of my work just left with one more. Needing your help!
I have to extract only the matrix (written within ) from a text file. For example:
1JTJ_0006_ACGC_NPNP_A_12_15.pdb ... (17 Replies)
hi all,
I am working on awk scripting.I have created two awk files and now have a requirement of replacing the contents of first file with some contents of second file.
Please find below the two files created.File1 has 3 records and File2 has 4 records.
cat File1
111,0165,CB21031251,0165,... (3 Replies)
Hey guys,
I want to get all the columns in this input file tab-delimited, i need to get the column send them to a variable. From there i could print them in shuffle and pick and select columns i want.
Here is the input sample
2013/08/05 06:50:38:067 MINOR SiteScope ... (9 Replies)
I am trying to write a shell script that will add a date to and awk command from the command prompt.
here is the line I am having difficulties.
zgrep -i playback $dir/$1-*-errors.out.gz |cut -d '|' -f 1,11,12,15 | awk -v start=${start} -v end=${end} -F '|' '{$1>=start && $1 <=end} {print $2... (7 Replies)
Discussion started by: infinity0880
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)