======Case Study 0x3: The Puzzle Box======
The third case study in the greatest class I will ever take.

=====Objectives=====
Complete the steps outlined in the Unix Tasks to reach the last file in the "Puzzle Box"

=====Procedure=====
Copying "file.txt" into my home directory and using the file command to learn about what it is:
<cli>
lab46:/var/public/unix/file$ ls
abcd.txt  file.txt  submit
lab46:/var/public/unix/file$ cp file.txt ~
lab46:/var/public/unix/file$ file ~/file.txt
/home/adahmane/file.txt: ASCII text
</cli>

Catting the file:
<cli>
lab46:~$ cat file.txt 
This is a simple text file. It contains ASCII text.
</cli>

Compressing the file with gzip and confirming the operation with ls:
<cli>
lab46:~$ gzip file.txt
lab46:~$ ls | grep file*
file.txt.gz
</cli>

Using file again to determine what our file really is:
<cli>
lab46:~$ file file.txt.gz 
file.txt.gz: gzip compressed data, was "file.txt", from Unix, last modified: Fri Dec  6 17:04:29 2013
</cli>

Unzipping file.txt.gz with gunzip, verifying, rezipping it with fast compression and verifying:
<cli>
lab46:~$ gunzip file.txt.gz 
lab46:~$ ls | grep file*
file.txt
lab46:~$ gzip --fast file.txt 
lab46:~$ ls | grep file*
file.txt.gz
lab46:~$ file file.txt.gz 
file.txt.gz: gzip compressed data, was "file.txt", from Unix, last modified: Fri Dec  6 17:04:29 2013, max speed
</cli>

My long and desperate attempt to understand that tar -xf doesn't change the actual file. Only pulling a file out of the archive. Derp.
<cli>
lab46:/var/public/unix/file$ cp abcd.txt ~/.
lab46:/var/public/unix/file$ cd
lab46:~$ ls
Desktop                Maildir   Templates        archive2.zip  file.txt.gz  script2.sh
Documents              Music     Videos           archives      new.sh       src
Downloads              Pictures  abcd.txt         closet        public_html  src.bak
Firefox_wallpaper.png  Public    archive1.tar.gz  exp.sh        script1.sh
lab46:~$ file abcd.txt
abcd.txt: gzip compressed data, was "abcd.tar", from Unix, last modified: Wed Sep 22 16:02:40 2010, max compression
lab46:~$ file abcd.txt
abcd.txt: gzip compressed data, was "abcd.tar", from Unix, last modified: Wed Sep 22 16:02:40 2010, max compression
lab46:~$ mv abcd.txt abcd.tar
lab46:~$ file abcd.tar 
abcd.tar: gzip compressed data, was "abcd.tar", from Unix, last modified: Wed Sep 22 16:02:40 2010, max compression
lab46:~$ gunzip abcd.tar 
gzip: abcd.tar: unknown suffix -- ignored
lab46:~$ mv abcd.tar abcd.gz 
lab46:~$ gunzip abcd.gz 
lab46:~$ ls
Desktop    Firefox_wallpaper.png  Pictures   Videos           archive2.zip  exp.sh       public_html  src
Documents  Maildir                Public     abcd             archives      file.txt.gz  script1.sh   src.bak
Downloads  Music                  Templates  archive1.tar.gz  closet        new.sh       script2.sh
lab46:~$ file abcd
abcd: POSIX tar archive (GNU)
lab46:~$ tar -xf abcd 
lab46:~$ ls
Desktop    Firefox_wallpaper.png  Pictures   Videos           archive2.zip  exp.sh        new.sh       script2.sh
Documents  Maildir                Public     abcd             archives      file.txt.gz   public_html  src
Downloads  Music                  Templates  archive1.tar.gz  closet        making.waves  script1.sh   src.bak
lab46:~$ file abcd
abcd: POSIX tar archive (GNU)
lab46:~$ tar -xf abcd 
lab46:~$ file abcd
abcd: POSIX tar archive (GNU)
lab46:~$ tar -xf abcd 
lab46:~$ file abcd
abcd: POSIX tar archive (GNU)
lab46:~$ tar -xf abcd 
lab46:~$ file abcd
abcd: POSIX tar archive (GNU)
lab46:~$ tar -xf abcd 
lab46:~$ file abcd
abcd: POSIX tar archive (GNU)
lab46:~$ file making.waves 
making.waves: Zip archive data, at least v2.0 to extract
lab46:~$ unzip making.waves 
Archive:  making.waves
  inflating: unix.text               
lab46:~$ ls
Desktop                Maildir   Templates        archive2.zip  file.txt.gz   script1.sh  unix.text
Documents              Music     Videos           archives      making.waves  script2.sh
Downloads              Pictures  abcd             closet        new.sh        src
Firefox_wallpaper.png  Public    archive1.tar.gz  exp.sh        public_html   src.bak
lab46:~$ cat unix.text 
---------------------------------------------------------------------------
Congratulations! You figured out this Case Study.

To finish, you must perform these two additional steps, which take the
form of command-lines. All you have to do is copy and paste them.

---------------------------------------------------------------------------
Action 1: copy this file to the /var/public/file/submit directory.
--------  Just run the following to perform that action:

cp unix.text /var/public/unix/file/submit/$USER-file.txt && echo "Success"

---------------------------------------------------------------------------
Action 2: mail this file's contents to your instructor as well as
--------  yourself (for proof of submission). Just run the following:

cat unix.text | mail -s "[CS: FILE]" wedge@lab46.corning-cc.edu $USER

NOTE: If successful, you should receive a copy of this file in your e-mail.
---------------------------------------------------------------------------
</cli>