Today I have learned a lot about compression decompression and archiving and extracting. I completed the lab arc0 where I had to learn to copy files from one directory and into another, I learned I can copy the name of one directory, Such as my own, by highlighting and right clicking and when I wish to paste I just right click and like magic the path I copied is on the screen where I wanted it to be, this was useful when I i wanted to copy the archive.tar.xz file into my own working directory. In order to extract the file I had to use the command tar -xvfj which extracted the file into the current directory. Once finished I renamed the files in numerical order while answering the questions I used cat to see what each contained then figured out the puzzle using the rev and tac commands and pushing them into another file using the > command and the » command » is to append to the file and > is to write in the file.

Today I have learned how to use the base64 commands and the arguements that go along with them such as the most important -d or –decode which will take a file that is COMPLETELY base64 (not small parts in regular text) and using the command $ base64 -d results1 > results you will take the base64 characters and decode them into regular characters forming readable sentences such as direction on how to complete the project. i worked with .zip files more and another important command in unix is file! file allows you to see what type of file the file you ask it for is, for example, $ file dinosaurs_with_hats.mp4 was: ASCII text. and riddle.html was actually known as shiny.tar which brings me on another topic of more practice with the .tar and archiving, extraction, compression and decompression.

For the project udr0 I learned a lot of different commands that are popular and useful such as dd and the arguments for it like if of bs skip and count. dd allows you to turn a file into a record player of sorts because it gives you the opportunity to skip a certain amount of bytes and go a certain amount of bytes and turn that selected piece into a file using of=FILENAME. I had to concatenate all of the different files together after decoding one of them. To decode them I used uudecode on the file and it turned it into a data file. once I had the picture file and two data files I concatenated them to the same file which was a picture of a meme. to concatenate I used the command > which passes the files on the left into a file on the right if you want to write one file at a time you must use » which allows you to append after the first one so it does not over write it self. I am have difficulties figuring out things that may seem clear, I am not sure if I am doing something wrong but i had a difficult time using dd because no matter how long I stared at the man pages I could not figure out how to use it correctly with proper syntax. once I learn a command or I would say a way of thinking I tend to remember easy but finding out on my own seems to stump me for hours dropping my moral about the project.