Earlier quoted context omitted.
please do explain in 2 words the od command. I was looking on the page and there is only one od command and it is not explained. thank you
I really didn't know about this command ... is it that bad to give me -1? ... I will never ask again here because of this and in the same time thank you you to the guys that actually lost some time to explain.
Many younger people have security issues explaining their knowledge with others, and sometimes exhibit this as criticism and acidity. It's possible that's what happened here.
I'm reminded of http://www.huffingtonpost.com/catherine-clennan/being-a-dumb... - it highlights the importance of always asking questions regardless of the context.
It's also possible that someone disliked your use of the phrase "two words", maybe because they interpreted it literally. Some things resist explanations that are both short and accurate.
Regarding od, it's a flexible format conversion tool that lets you convert arbitrary data to hexadecimal, octal and C escaped printable text. I use it a lot!