im trying to run the below if command
ifconfig -a |grep 10.100.120.21
gives me below output
inet addr:10.100.120.21 Bcast:10.100.120.255 Mask:255.255.255.0
i just want a basic shell which says if above exists then continue
how would i do this? (6 Replies)
In bash scripts please can someone tell me if the below is the correct syntax for comparing integers and strings;
for integers -
if ;then
for strings -
if ; then
Thanks
Calypso (4 Replies)
hi,
I am new script learner,
so my basic doubt is ,
how to store value of any command in a variable example
$ ls | wc -l
i want to stote the output of this in a variable c.
so that i can use c in if else loop.
and when do we use " ` " symbol in script..
can anyone also tell for... (5 Replies)
Lets say I wanted to create a script that would show what people are doing on my machine using the w command and refresh in about 6 seconds. What would be the easiest way to do this? I pretty much want the script to loop until I stop it.
I'm using the BASH shell by the way.
Help is appreciated.... (1 Reply)
Im trying to make a script that simply adds a word to the last available line in a txt file without overwriting any previous lines.
Ive googled this and there are great examples but no one explain what each function does, and i dont entirely understand how it works.
Basically Im looking for... (7 Replies)
Hey everyone, just now joined because I didn't want to go onto Ubuntu forums and start asking about how to write shell scripts. Seems like this is a pretty active forum for exactly what I need.
I'm trying to modify a shell script I found online, the end goal is to have it find all files in the... (9 Replies)
I need to have a script read a file that has a list of words in a single column like below:Black
Blue
Brown
Orange
Red
Yellow
Green
White
Purple
Silver
Grey
Tan
Then print to another file just all of the two-word possible combinations. Example:
Black,Blue
Anyone want to take a... (4 Replies)
Hello,
This is basic (i think). I am trying to run a shell script which would go into each folder (folder names defined in the list) and after entering would run some commands, once done, come out of the folder and continue until the list ends.
Pretty basic and there are bunch of example online. ... (9 Replies)
Hi everyone, first time visitor to these forums here.
Keeping a long story short I've been attempting to learn how to code in bash. I have VERY little previous experience with coding languages besides simply copying and pasting batch scripts for Windows. So, with that in mind I've followed a... (4 Replies)
Discussion started by: Meta
4 Replies
LEARN ABOUT DEBIAN
mousex::nativetraits::num
MouseX::NativeTraits::Num(3pm) User Contributed Perl Documentation MouseX::NativeTraits::Num(3pm)NAME
MouseX::NativeTraits::Num - Helper trait for Num attributes
SYNOPSIS
package Real;
use Mouse;
has 'integer' => (
traits => ['Number'],
is => 'ro',
isa => 'Num',
default => 5,
handles => {
set => 'set',
add => 'add',
sub => 'sub',
mul => 'mul',
div => 'div',
mod => 'mod',
abs => 'abs',
},
);
my $real = Real->new();
$real->add(5); # same as $real->integer($real->integer + 5);
$real->sub(2); # same as $real->integer($real->integer - 2);
DESCRIPTION
This provides a simple numeric attribute, which supports most of the basic math operations.
PROVIDED METHODS
It is important to note that all those methods do in place modification of the value stored in the attribute. These methods are implemented
within this package.
set($value)
Alternate way to set the value.
add($value)
Adds the current value of the attribute to $value.
sub($value)
Subtracts $value from the current value of the attribute.
mul($value)
Multiplies the current value of the attribute by $value.
div($value)
Divides the current value of the attribute by $value.
mod($value)
Returns the current value of the attribute modulo $value.
abs Sets the current value of the attribute to its absolute value.
METHODS
meta
method_provider_class
helper_type
SEE ALSO
MouseX::NativeTraits
perl v5.14.2 2011-12-04 MouseX::NativeTraits::Num(3pm)