Hey. This is pretty easy stuff but I'm learning the basics of Unix at the moment so keep that in mind. I have to:
1) Write a C-shell script to monitor user activity on the server for 13 minutes.
2) Then print the smallest and largest number of users during these 13 minutes.
I have this:
1)... (2 Replies)
Hey,
This is a long-shot however, I am stuck with the following problem:
I have the output from ls -la, and I want to sort some of that data out by using AWK to filter it.
ls -la | awk -f scriptname.awk
Input:
For example:
drwxr-xr-x 3 user users 4096 2010-03-14 20:15 bin/... (5 Replies)
I need to calculate the biggest number in array size n.
Example: Users enter: 1 7 4 9
The biggest number is : 9
Simple but I'm really new on this on Shell/Bash! Anything will be helpful! Thanks!
#!/bin/bash
printf "\tEnter a list of numbers, with spaces: "
read -a ARRAY
BIG=$1... (5 Replies)
Hi,
Anybody know how to print out the record that shown smallest number among column 3 and column 4
Case 1 Input :
37170 37196 77 51
37174 37195 73 52
37174 37194 73 53
Case 1 Output :
37170 37196 77 51
Case 2 Input :
469613 469660 73 ... (4 Replies)
Hello,
I have often found bash to be difficult when it comes to floating point numbers. I have data with rows of tab delimited floating point numbers. I need to find the smallest number in each row that is not 0.0. Numbers can be negative and they do not come in any particular order for a given... (9 Replies)
Discussion started by: LMHmedchem
9 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)