linux trouble nov22

[root@localhost ~]# history
    1  exit
    2  chvt 2
    3  cd /usr/lib64/security/
    4  ls
    5  cd /etc/pam.d
    6  vim login
    7  vim system-auth
    8  cd
    9  dnf install -y git
   10  git clone https://github.com/sandervanvugt/trouble
   11  cd trouble/
   12  ls
   13  cd ..
   14  git clone https://github.com/sandervanvugt/luth
   15  cd luth/
   16  ./countdown 12
   17  cd
   18  #dd if=/dev/zero of=/dev/sda bs=512 count=1
   19  lsblk
   20  xxd -l 512 /dev/sda
   21  dd if=/dev/zero of=/dev/sda bs=512 count=1
   22  xxd -l 512 /dev/sda
   23  reboot
   24  cd /home/linda
   25  useradd linda
   26  passwd linda
   27  cd /home/linda
   28  touch deleteme
   29  chattr +i deleteme
   30  exit
   31  reboot
   32  cd /home/linda
   33  touch wortel
   34  lsattr
   35  man 7 capabilities
   36  man chattr
   37  chattr -i deleteme
   38  ls -Z /etc/shadow
   39  touch /.autorelabel
   40  reboot
   41  history