Is there a way to compare two floating points numbers in a bash script using perl? I've tried just using a bash if statement and it doesn't seem to support floating point numbers. Can the perl line read vars from bash then output a var to bash?
a=1.1 #from bash
b=1.5 #from bash
if... (3 Replies)
consider this as a csv file.
H,0002,0002,20100218,17.25,P,barani
D,1,2,3,4,5,6,7,8,9,10,11
D,1,2,3,4,5,6,7,8,9,10,11
D,1,2,3,4,5,6,7,8,9,10,11
D,1,2,3,4,5,6,7,8,9,10,11
D,1,2,3,4,5,6,7,8,9,10,11
T,5
N
i want to read the csv file and count the number of rows that start with D and... (11 Replies)
Hi,
I do little bash scripting so sorry for my ignorance.
How do I compare if the two variable not match and if they do not match run a command.
I was thinking a for loop but then I need another for loop for the 2nd list and I do not think that would work as in the real world there could... (2 Replies)
ok, so here is the issue, I have 2 arrays.
I need to be able to create a loop that will find ${ARRAY1 in the text doc, and replace it with ${ARRAY2 then write the results. I already have that working. The problem is, I need it to do that same result across however many items are in the 2... (2 Replies)
Beginner/Intermediate shell; comfortable in the command line.
I have been looking for a solution to a backup problem. I need to compare Directory 1 to Directory 2 and copy all modified or new files/directories from Directory 1 to Directory 3. I need the directory and file structure to be... (4 Replies)
Hello Friends
please help me to create script to compare 2 fiile which has rpm info .
File 1:
glibc-2.12.1.149.el6_6.5.x86_64.rpm
glibc-common-2.12-1.149.el6_6.5.x86_64.rpm
File 2 :
glibc-2.12.123.el6_6.5.x86_64.rpm
glibc-common-2.12-123.el6_6.5.x86_64.rpm
To compare file1... (1 Reply)
I am trying to write a Bash Script using a couple of arrays. I need to perform a countdown of sorts on an array done once daily, but each day would start with the numbers from the previous day. This is what I'm starting with :
#!/bin/bash
days=(9 8 7 6 5)
for (( i = 0 ; i < ${#days} ; i++... (4 Replies)
Currently i am building a script like based on region parameter it will filter the records in config file and then it will create a text file like ab.txt and it will read the path location in that file and now i need to compare the files name in the config file to files in the path of the config... (1 Reply)
I all
I have written a bash script for compare two date. One of those is a result of query, and another is current date.
I have a problem with the format, because the first is 09/12/19 18:50:30 but for having this result I have to do
d1DB=$(date -d "$valData" +'%m/%d/%y %T')
and the second... (9 Replies)
Discussion started by: rdie77
9 Replies
LEARN ABOUT DEBIAN
mail::box::tie::array
Mail::Box::Tie::ARRAY(3pm) User Contributed Perl Documentation Mail::Box::Tie::ARRAY(3pm)NAME
Mail::Box::Tie::ARRAY - access an existing message folder as array
SYNOPSIS
use Mail::Box::Manager;
my $mgr = Mail::Box::Manager->new;
my $folder = $mgr->open(folder => 'inbox');
use Mail::Box::Tie::ARRAY;
tie my(@inbox), 'Mail::Box::Tie::ARRAY', $folder;
# deprecated, but works too
use Mail::Box::Tie;
tie my(@inbox), 'Mail::Box::Tie', $folder;
foreach (@inbox) {print $_->short}
print $_->print foreach @inbox;
my $emails = @inbox;
print $inbox[3];
print scalar @inbox;
push @inbox, Mail::Box::Message->new(...);
delete $inbox[6];
print $inbox[0]->head->get('status');
my $folder = tied @inbox;
untie @inbox;
DESCRIPTION
Certainly when you look at a folder as a list of messages, it is logical to access the folder through an array.
Not all operations on arrays are supported. Actually, most functions which would reduce the size of the array are modified instead to mark
messages for deletion.
Examples what you cannot do:
shift/unshift/pop/splice @inbox;
METHODS
Constructors
TIEARRAY('Mail::Box::Tie::ARRAY', FOLDER)
Create the tie on an existing folder.
example: tie an array to a folder
my $mgr = Mail::Box::Manager->new;
my $inbox = $mgr->new(folder => $ENV{MAIL});
tie my(@inbox), 'Mail::Box::Tie::Array', ref $inbox, $inbox;
Tied Interface
$obj->DELETE()
Flag a message to be removed. Be warned that the message stays in the folder, and is not removed before the folder is written.
example:
delete $inbox[5];
$inbox[5]->delete; #same
$obj->FETCH(INDEX)
Get the message which is at the indicated location in the list of messages contained in this folder. Deleted messages will be returned
as "undef".
example:
print $inbox[3]; # 4th message in the folder
print @inbox[3,0]; # 4th and first of the folder
print $inbox[-1]; # last message
$obj->FETCHSIZE()
Return the total number of messages in a folder. This is called when the folder-array is used in scalar context, for instance.
example:
if(@inbox > 10) # contains more than 10 messages?
my $nrmsgs = @inbox;
$obj->PUSH(MESSAGES)
Add MESSAGES to the end of the folder.
example:
push @inbox, $newmsg;
$obj->STORE(INDEX, MESSAGE)
Random message replacement is not permitted --doing so would disturb threads etc. An error occurs if you try to do this. The only
thing which is allowed is to store a message at the first free index at the end of the folder (which is also achievable with PUSH()).
example:
$inbox[8] = $add;
$inbox[-1] = $add;
push @inbox, $add;
$obj->STORESIZE(LENGTH)
Sets all messages behind from LENGTH to the end of folder to be deleted.
DETAILS
Folder tied as array
Limitations
This module implements "TIEARRAY", "FETCH", "STORE", "FETCHSIZE", "STORESIZE", "DELETE", "PUSH", and "DESTROY".
This module does not implement all other methods as described in the Tie::Array documentation, because the real array of messages is not
permitted to shrink or be mutilated.
SEE ALSO
This module is part of Mail-Box distribution version 2.105, built on May 07, 2012. Website: http://perl.overmeer.net/mailbox/
LICENSE
Copyrights 2001-2012 by [Mark Overmeer]. For other contributors see ChangeLog.
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See
http://www.perl.com/perl/misc/Artistic.html
perl v5.14.2 2012-05-07 Mail::Box::Tie::ARRAY(3pm)