User Account

All Pages

Read file in Perl, Programming Languages

Assignment Help:
These are the specifications for your Perl program:
1. The file containing your program must be named cookiemgr.pl
2. It must be invoked as:
cookiemgr.pl cookies_file [options]
The program must check that its first argument exists, is a file and is readable. If not, it must
print an error message to the standard output and exit. The first argument is compulsory while
the second argument is optional. The arguments are described in the following.
3. File cookies_file can have any arbitrary name. It must be a file of text with the following
format:
a. The file consists of an arbitrary number of lines (including, possibly, zero lines). Each
line corresponds to a cookie.
b. Each line must contain three fields separated by semicolons.
c. The three fields are: name-value pair, domain and expiry date.
d. The name-value pair field must be a string with the following format:
name=value
both name and value are strings of minimum 1 character and maximum 20 characters
arbitrarily chosen in ranges a-z, A-Z, 0-9.
e. The domain field is a string encoding a web address; it can contain a maximum of 100
characters from the set above, plus the period (.).
f. The expiry date field must be a string encoding a date in the dd/mm/yyyy format.
The following example is the final specification for the format of file cookies_file:
color=red;xyz.org.au;01/12/2013
username=Massimo;xyz.org.au;01/12/2013
fontface=bold;www.nosite.com.au;30/06/2014
color=white;www.hello.uts.edu.au;31/10/2013
username=Matt;www.nosite.com.au;30/06/2014
fonttype=Times;www.hello.uts.edu.au;01/09/2018
Important note: your program does not need to verify that file cookies_file complies with the
specifications. You can simply assume that the file meets all the specifications given above. Subject: 32547 UNIX Systems Programming, Spring 2013 - Assignment
4
4. Your program can be invoked without any options. In this case, it must only print the
following string:
Found
Example with the example cookies_file given above:
Command line:
cookiemgr.pl cookies_file
Output:
Found 6 cookies
In the case in which file cookies_file be empty, your program must instead only print:
No cookies found
5. Your program can be invoked with option: –n name. In this case, it must only print the
following string:
Found cookies with name
Example with the example cookies_file given above:
Command line:
cookiemgr.pl cookies_file –n username
Output:
Found 2 cookies with name username
Option –n name can only be used once per command line (you can only ask for the cookies
with one given name at a time).
In the case in which file cookies_file contains no cookies with the given name, your program
must instead only print:
No cookies found with name Subject: 32547 UNIX Systems Programming, Spring 2013 - Assignment
5
Example with the example cookies_file given above:
Command line:
cookiemgr.pl cookies_file –n bkgcolor
Output:
No cookies found with name bkgcolor
6. Your program can be invoked with option: –d date. In this case, it must only print the
following string:
Found cookies persisting after
The string above reports the number of cookies that will still exist (i.e., persist) after the given
date.
Example with the example cookies_file given above:
Command line:
cookiemgr.pl cookies_file –d 01/01/2014
Output:
Found 3 cookies persisting after 01/01/2014
since there are 3 cookies in the example cookies_file which are set to expire after the given
date (those with expiry dates: 30/06/2014, 30/06/2014 and 01/09/2018, orderly).
Option –d date can only be used once per command line (you can only ask for the cookies with
a given date at a time).
In the case in which file cookies_file contains no cookies persisting after the given date, your
program must instead only print:
No cookies found persisting after
Example with the example cookies_file given above:
Command line:
cookiemgr.pl cookies_file –d 31/05/2020
Output:
No cookies found persisting after 31/05/2020 Subject: 32547 UNIX Systems Programming, Spring 2013 - Assignment
6
7. Your program can be invoked with option: –s. In this case, it must only print your name,
surname, student ID and date of completion of your assignment, in a format of your choice.
Please note that the first argument is still required.
8. The options cannot be used simultaneously. This means that your program can only be invoked
in the following way: 1) with no options; 2) with option –n name; 3) with option –d date; 4)
with option –s.
9. If your program is invoked with a valid first argument, but any other syntax than those
specified above, it must only print the following string:
Syntax error: invalid syntax
and exit.
Example:
Command line:
cookiemgr.pl cookies_file –Z alpha
Output:
Syntax error: invalid syntax

Related Discussions:- Read file in Perl

Calculating percentage differences-circuit diagram, In the procedure sectio...

In the procedure section, it is important to have a clear circuit diagram with component values and a brief, but accurate description of each step taken. 1. Tables for both the

Perform dbscan clustering and k means, Perform Dbscan Clustering and K mean...

Perform Dbscan Clustering and K means I have a simple array of data. I need to perform dbscan clustering and k means based on the values in the array.detailed description  bel

ARM LANGUAGE, I WANT TO MAKE PROJECT IN ARM LANGUAGE CAN YOU HELP ME

I WANT TO MAKE PROJECT IN ARM LANGUAGE CAN YOU HELP ME

I have to create three batch files, I have to create a bank atm machine usi...

I have to create a bank atm machine using MS-DOS. I am struggling to create LIST ALL ACCOUNTS ROLL-BACK TRANSACTIONS ACCESS AN ACCOUNT

Version control systems - delete and update, The next major set of tasks to...

The next major set of tasks to tackle are delete and update. Version control systems typically version updates to a ?le and only store the differences between the ?les. Two system

#data dictonary, # how to make data dictonary

# how to make data dictonary

Differences between user and kernel level threads, Question : (a) Many ...

Question : (a) Many systems provide support for both user threads and kernel threads, resulting in different multithreading models. What are the two differences between user

Program third command line argument, Most popular news websites publish the...

Most popular news websites publish their RSS ( Really Simple Syndication ) feeds. If you haven 't heard of RSS, you may have a look at this article on Wikipedia. In this assignm

.net class library, .NET class library .NET structure comes with just on...

.NET class library .NET structure comes with just one category selection. And that all developers need to learn!! Whether they create the value in C# or VB.NET or J#, it doesn't

Devlop personalized location based news service, The system you will develo...

The system you will develop should provide the following functionality to its users.     1.  Your system should allow the users to aggregate three different RSS feeds (they should

Write Your Message!

Captcha
Order Assignment

Featured Services

Order Now

Popular Subjects

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +91-977-207-8620

Phone: +91-977-207-8620

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd