Oops I deleted my bin/ dir :(

level 1

For now, all you need to do is figure out where you are, print the current working directory.

pwd

 

level 2

List all of the files on a single line, in the current working directory.

echo *

 

level 3

Oh no! You now remember there is a very important file in this directory. Display its contents before the data is lost for forever!

echo "$(<my-dissertation.txt)"

 

level 4

You know there is a process on machine that is deleting files, the first thing you want to do is identify the name of it. Print the name of the process

echo "$(</proc/42/cmdline)"

 

level 5

You managed to save your important file. Now that you know the process name it will be good to kill it before it does any more damanage.

kill 42