---

krammy@debian:~$ cat lessons/lesson.txt 
Block n1 
krammy@debian:~/lessons$ whoami
krammy
krammy@debian:~/lessons$ pwd
/home/krammy/lessons
krammy@debian:~/lessons$ 

Block n2

krammy@debian:~$ mkdir lab
krammy@debian:~$ cd lab/
krammy@debian:~/lab$ 

Block n3 & n4

krammy@debian:~/lab$ touch notes.txt
krammy@debian:~/lab$ echo barabarabere > notes.txt
krammy@debian:~/lab$ nano notes.txt 

Block n5

krammy@debian:~/lab$ cat notes.txt
barabarabere
krammy@debian:~/lab$ head notes.txt 
barabarabere
krammy@debian:~/lab$ tail notes.txt 
barabarabere

Block n6

krammy@debian:~$ ls -la lab/
итого 12
drwxrwxr-x  2 krammy krammy 4096 сен 18 15:12 .
drwx------ 17 krammy krammy 4096 сен 18 15:09 ..
-rw-rw-r--  1 krammy krammy   13 сен 18 15:11 notes.txt
krammy@debian:~$ 

Block n7 

krammy@debian:~$ cd lab/
krammy@debian:~/lab$ cp notes.txt notes_backup.txt
krammy@debian:~/lab$ ls
notes_backup.txt  notes.txt
krammy@debian:~/lab$ 

Block n8 

krammy@debian:~/lab$ cd
krammy@debian:~$ nano lessons/lesson.txt 
krammy@debian:~$ mv lab/notes_backup.txt old_notes.txt
krammy@debian:~$ ls
 lab       old_notes.txt   Документы   Изображения   Общедоступные   Шаблоны
 lessons   Видео           Загрузки    Музыка       'Рабочий стол'

Block n9

krammy@debian:~$ rm -r lab
krammy@debian:~$ mkdir -p lab/{src,docs,tmp}
krammy@debian:~$ cd l
lab/     lessons/ 
krammy@debian:~$ cd l
lab/     lessons/ 
krammy@debian:~$ cd lab/
krammy@debian:~/lab$ ls
docs  src  tmp
krammy@debian:~/lab$ 

Block n10 
krammy@debian:~$ rm -r lab
krammy@debian:~$ mkdir -p lab/{src,docs,tmp}
krammy@debian:~$ cd l
lab/     lessons/ 
krammy@debian:~$ cd l
lab/     lessons/ 
krammy@debian:~$ cd lab/
krammy@debian:~/lab$ ls
docs  src  tmp
krammy@debian:~/lab$ 

krammy@debian:~$