Alrigt, I need to write a shell script where it counts the number of folders and files and dispays "My home directory has 'x' files and 'y' directories."
So, I was thinking of doing this.
set x = `ls | wc`
so, if I have 8 files and folders in my home directory, x is not 8.
now, I was... (1 Reply)
Anyone know where I can get started in C++ programming in unix?
Any good free tutorials or websites to start at?
I am okay in unix scripting but have never done c programming of any sort...
What are the main advantages of using C++ ? (2 Replies)
hi guys,
i have a DEl xps laptop cor 2 duo 2.2
i have vista installed on it
i want to install a dual Boot UNIX on it..
can some one guide me ...cause i m tottaly new to UNIX
i want to install unix on that laptop along with Vista....
thx
any help would be deeply appreciated
(sorry if i... (5 Replies)
I need to write a script to test a nsort c program. I have written 8 .txt files with different cases. Also 8 .txt files with expected outcome. The shell I have written always "test pass" for the first case but always "fail" for the rest... Here is a portion of my code (as I still don't know how to... (5 Replies)
Hi people....
I have just started to learn unix.I want to know which version of Unix to install plus how to install it.I need to practise and make myself aware of how unix works.My thread is from an educational point of view.Also please feel free to give your suggestions as I am... (3 Replies)
Hello,
I am trying to write a script that reads names from a file called input, removes names if they have the same letter next to each other and prints the others.
e.g. Colin & John would be printed
Garry & Lynn would be removed
My thinking is that I read in each name and... (3 Replies)
Hi All,
I have just now started learning awk from the source - Awk - A Tutorial and Introduction - by Bruce Barnett
and the bad part is that I am stuck on the very first example for running the awk script.
The script is as -
#!/bin/sh
# Linux users have to change $8 to $9
awk '
BEGIN ... (6 Replies)
I am going to learn AWK for Pattern search (extracting strings ) related activities. I think that is what AWK is used for anyway.
What book/similair resource would you suggest for a beginner ? (4 Replies)
Hi,
I think I need to use AWK - however I have no experience of it. Can someone help please?
I have a file like this but with many more records - it is fixed width
THIS15021X 799999 XX 00000099999 00008888888 XX 15022013
THISQ15021X 999999 XX 00000099999... (7 Replies)
i have windows 8 host on Dell Laptop
vmware 9
redhat 7.2 iso downloaded through redhat official site
after installation on vm it only boots into text dont show graphics
Please guide:( (1 Reply)
Discussion started by: hananabbas
1 Replies
LEARN ABOUT DEBIAN
statistics::basic::mean
Statistics::Basic::Mean(3pm) User Contributed Perl Documentation Statistics::Basic::Mean(3pm)NAME
Statistics::Basic::Mean - find the mean of a list
SYNOPSIS
Invoke it this way:
my $avg = mean(1,2,3);
Or this way:
my $v1 = vector(1,2,3);
my $avg = avg($v1);
And then either query the values or print them like so:
print "The mean of $v1: $avg
";
my $mq = $avg->query;
my $m0 = 0+$avg;
Create a 20 point moving average like so:
use Statistics::Basic qw(:all nofill);
my $sth = $dbh->prepare("select col1 from data where something");
my $len = 20;
my $avg = mean()->set_size($len);
$sth->execute or die $dbh->errstr;
$sth->bind_columns( my $val ) or die $dbh->errstr;
while( $sth->fetch ) {
$avg->insert( $val );
if( defined( my $m = $avg->query ) ) {
print "Mean: $m
";
}
# This would also work:
# print "Mean: $avg
" if $avg->query_filled;
}
METHODS
new()
The constructor takes a single array ref or a single Statistics::Basic::Vector as arguments. It returns a Statistics::Basic::Mean
object.
Note: normally you'd use the mean() constructor, rather than building these by hand using "new()".
_OVB::import()
This module also inherits all the overloads and methods from Statistics::Basic::_OneVectorBase.
OVERLOADS
This object is overloaded. It tries to return an appropriate string for the calculation or the value of the computation in numeric
context.
In boolean context, this object is always true (even when empty).
AUTHOR
Paul Miller "<jettero@cpan.org>"
COPYRIGHT
Copyright 2012 Paul Miller -- Licensed under the LGPL
SEE ALSO perl(1), Statistics::Basic, Statistics::Basic::_OneVectorBase, Statistics::Basic::Vector
perl v5.14.2 2012-01-23 Statistics::Basic::Mean(3pm)