Transcription Outsourcing

Transcription Outsourcing

In this concise article we will learn some basics of how to use Linux Command line, so lets get started.

Requirements:

1. An open Terminal in your Linux Box. I'm using Kali Linux 2.0
or you can check out this amazing website Webminal

Command: ls
Syntax:    ls [flag(s)]
Function: ls is short for list. ls command is used to list the contents of a directory these contents include files, folders, and links. ls has many optional flags as well, some of them are described below
Flags: -a this flag is used to view hidden files that is those files whose names are preceded   by a '.'(dot)
-l this flag is used to view file permissions, owner of the file, group of the owner, the file size, the modification date, and the filename. We'll talk more about it in later articles.

Command: mkdir
Syntax:   mkdir dirname
Function: mkdir is used to create a directory (or a folder) with the name which is followed by the command

now lets create a directory in our current directory named as myfiles, how would you do that?

mkdir myfiles

which command should we use in order to verify that the directory has been created in our current folder?

ls

this will list all the files and directories in our current folder. Do you see myfiles directory listed?

Command: cd
Syntax:   cd path/to/directory
Function: cd is short for change directory. It is used to navigate directories, or to make it clear it does the same thing as what double clicking on a folder do except it doesn't show you contents of the directory :(. In order to navigate or visit another directory we need to provide it's ABSOLUTE-PATH or RELATIVE-PATH you heard that, didn't ya?

Paths are of two types relative path or absolute path (also called full-path). Relative as the name suggests is relative to the current directory, so if you have to navigate to a folder within the current directory you'll just simply type cd directory_name. But what if you have to navigate to a directory which is the parent of current directory? Well it's easy just type cd .. (yes double dots, you noticed that .. and . thing when you typed ls -a, didn't you?). The double dots mean the directory above current directory (i,e the parent directory) and a single dot means the current directory (i,e the directory that I'm currently in). Now if you have to navigate two directories above current directory using relative path navigation you'll type

cd ../..

here .. means previous directory and another .. after slash (/) means the previous directory of the previous directory sounds confusing..!

The Absolute Path means full path to the file or folder which starts from root directory. Say I want to navigate to my home folder using absolute path, then I'll type:

cd /home/user

where user is the username
Now think of navigating to the myfiles folder from your home directory using the absolute path, it will be something like this:

cd /home/user/myfiles

Exercise: Create a directory project1 inside your home directory and inside the project1 directory create a file and a directory named index.html and css respectively. Then navigate to the css directory and create a style.css file inside it. At last navigate out of the css directory to home both using the relative and absolute path mechanisms.

[Trick: To get quickly out of any directory to your home directory type cd ~ [press Enter] or simply cd [press Enter]]

Command: touch
Syntax: touch filename
Function: touch is a nifty little function used to create an empty file (actually it's used to change access time of a file but everyone has got bad habits :P ). You can create any type of empty file with the touch command. If you are a bit curious about touch read the manual page of the touch command using the man touch command.

Now lets create a few files inside of our myfiles directory

touch file1 file2 file3

The above command creates three empty files in our current directory named file1, file2, and file3.
How will you verify that it has indeed created these three files in your current directory? I won't answer this time.

Command: echo
Syntax: echo Hacker manufacturing under process
Function: echo is used to display a line of text. By default echo displays a line of text on the terminal which is the standard output device (stdout for short). However we can redirect the output of an echo command to a file using > (the greater than symbol).
Now if we have to echo a line of text to a file, say file1 in our myfiles directory, we will type:

echo This is file1 > file1

The above command will echo the text "This is file1" to file1.

Command: cat
Syntax: cat filename [anotherfilename...]
Function: cat stands for concatenate (not that puny little creature in your house). The main function of cat is to concatenate files and display them on your terminal (or in geeky terms stdout). But its also used to display the contents of a file on your terminal.

Let's display the contents of file1 in the myfiles directory that we echoed to it using the echo command, for that we'll type:

cat file1

Awesome I can see on black screen contents of my file (what if your terminals background is white?), looks like I'm becoming a hacker. In case you don't see it then I suggest you should give up the thought of becoming a hacker. Just kidding you might have missed a step or two from the above steps that we performed.

Now lets say that we want to add another line of text to our file using the echo command should we use the same greater than (>) symbol? No, if we want to add another line (which in geeky terms is to append a line) to our file using the echo command we have to use >> (two greater than symbols) like this:

echo Another line of text >> file1

now to check the contents of file1 we'll type:

cat file1

OK we wrote two lines inside of the file1.
Does it mean we have to add three greater than symbols to write third line? Oh! I didn't thought you'd be such a genius.

A single greater than symbol (>) means redirect the output of the preceding command to a file specified after the > symbol. If the file exists then overwrite everything that's in it with the new contents and if the file does not exist then create one and write to it the output of the preceding command. So if you had typed

echo Another line of text > file1

it would have overwritten the contents of the file1 with "Another line of text" and the line "This is file1" would no longer be present in the file.

Two greater than symbols (>>) mean that append (remember the geeky term?) the output of the previous command to the end of file specified after >>. Now if you want to add another line of text to file1, you won't use >>> rather you'll use >> like this:

echo Third line in file1 >> file1

This is it for today. But don't worry we'll learn more things soon.

TOP 10 HACKING MOVIES

Here I have listed top 10 hacking movies that you should watch.

1. HACKERS (1995)

In Hackers, Angelina Jolie and Jonny Lee Miller portray two youthful and hip hackers. Miller portrays a hacker who got caught as a very young child at an age of 11 years after crashing thousands of computers and has been sentenced to zero computer access until his 18th birthday.

2. LIVE FREE OR DIE HARD (2007)

Live Free or Die Hard (also known as Die Hard 4 and released as Die Hard 4.0 outside North America) is a 2007 American action film, and the fourth in the Die Hard film series depicts a scenario where a hacker played by Timothy Olyphant (of Justified fame) takes down nearly the entire U.S. infrastructure in an attempt to transfer trillions of dollars from the Federal Reserve to his account. This movie gives a complete idea of how actually these blackhat hackers operate.

3. EAGLE EYE (2008)

In this movie, two people get a call from an unknown number by a woman. They get a task on the phone that if they don't follow the phone call they would die. This movie displays supercomputer hack on all networks and military networks. This is just an amazing movie on how artificial intelligence computer hacks our real life for bad motives.

4. ALGORITHM (2014)

The film 'Algorithm' tracks the travails of Will, who is the freelance computer hacker who hacks into a top-secret government contractor agency and downloads all their recently developed programs." You can see the full movie below

5. WARGAMES (1983)

The film features David Lightman (Broderick), a young high school student hacker who accidentally hacks into a military supercomputer and starts the countdown to World War III.

6. THE MATRIX (1999)

This is one of the greatest science fiction movies. In this movie, reality, as perceived by most humans, is actually a simulated reality called "the Matrix", created by machines to subdue the human population, while their bodies' heat and electrical activity are used as an energy source.

A character named "Neo", who is a computer Hacker, learns this truth and is drawn into a rebellion against the machines, which involves other people who have been freed from the "dream world". The Matrix franchise is a trilogy movie series.

7. TAKEDOWN (2000)

This movie is based on famous computer U.S. hacker Kevin David Mitnick. Based upon the book and written by his nemesis, Tsutomu Shimomura, the story tends to glorify Shimomura. Mitnick operated in the 1980s and '90s and eventually went to prison for a couple of years. Now, he is a highly paid IT security consultant, speaker, and writer.

8. BLACKHAT (2015)

Blackhat is newly released movie by Chris Hemsworth. In this movie, hackers hack the Chinese nuclear power plant to start a nuclear reaction. Simultaneously, they also hack the stock exchange and steal millions of dollars from the bank. This movie shows how a black hat hackers threaten governments.

9. THE ITALIAN JOB (2003)

Although the MINI Coopers are really the stars of The Italian Job (a remake of the 1969 film of the same name), Seth Green plays Lyle, a hacker among a group of elite thieves, who is able to manipulate traffic signals, among other devices, that make this grand theft possible.

10. UNTRACEABLE (2008)

This film involves a serial killer who rigs contraptions that kill his victims based on the number of hits received by a website KillWithMe.com that features a live streaming video of the victim. Millions of people log on, hastening the victims' deaths.

There may be more exciting hacking movies but I found these top 10 hacking movies that you should watch for once.

You can also find out the top 5 most dangerous hackers in the real world living.

Sunday, August 30, 2020

Linux Command Line Hackery Series: Part 1