1  vim countdown
    2  countdown 12
    3  echo $PATH
    4  ./countdown 12
    5  ls -l countdown
    6  chmod +x countdown
    7  ./countdown 13
    8  sudo systemctl isolate multi-user.target
    9  sudo systemctl isolate graphical.target
   10  echo $SHELL
   11  sudo systemctl status sshd
   12  sudo firewall-cmd --list-all
   13  sudo ip addr show
   14  history
   15  sudo ip addr show
   16  sudo -i
   17  history
   18  sudo -i
   19  history
   20  sudo useradd linda
   21  sudo passwd linda
   22  su - linda
   23  sudo su - linda
   24  sudo ls -l /var/
   25  sudo ls -l /var/log/
   26  sudo ls -lrt /var/log/
   27  sudo tail /var/log/messages
   28  cd /
   29  ls
   30  ls -l
   31  ls -l /etc/
   32  cat /etc/passwd
   33  cat /etc/shadow
   34  sudo cat /etc/shadow
   35  ls
   36  cd /home
   37  ls
   38  cd
   39  touch hello
   40  cd /
   41  touch hello
   42  cd /tmp
   43  sudo -i
   44  man motd
   45  countdown 12
   46  cd
   47  echo $PATH
   48  sudo mv countdown /usr/bin/
   49  countdown 12
   50  LS
   51  ls --help
   52  ls --help | less
   53  man ls
   54  man lvcreate
   55  sudo yum install -y bash-completion
   56  touch iowhgihwioerhoiwhoibhwiorhiorbehwiorhboiehriobrh
   57  echo $PATH
   58  sudo nmcli connection show ens33
   59  history
   60  man -k user
   61  man man
   62  man apropos
   63  sudo mandb
   64  man -k user
   65  man -k user | wc
   66  man -k user | grep create
   67  man man
   68  man -k user | grep 8
   69  man -k user | grep 8 | wc
   70  man -k user | grep 8 | grep create
   71  history
   72  sudo systemctl status crond
   73  man passwd
   74  man 5 passwd
   75  man 5 shadow
   76  ls -l /etc/passwd
   77  id
   78  sudo /tmp/lindafile
   79  sudo touch /tmp/lindafile
   80  sudo -l /tmp/lindafile
   81  sudo ls -l /tmp/lindafile
   82  sudo chown linda /tmp/lindafile
   83  sudo ls -l /tmp/lindafile
   84  sudo su - linda
   85  chmod 777 /tmp/lindafile
   86  sudo chmod 777 /tmp/lindafile
   87  ls -l /tmp/lindafile
   88  echo helloooo >> /tmp/lindafile
   89  cat /tmp/lindafile
   90  ip addr show
   91  ifconfig
   92  man ifconfig
   93  sudo ip a
   94  sudo ip addr add dev ens33 10.0.0.10/24
   95  sudo ip a
   96  ping 10.0.0.10
   97  ifconfig
   98  sudo rpm -qf $(which ifconfig)
   99  sudo rpm -ql net-tools
  100  sudo yum repolist
  101  sudo yum search nmap
  102  sudo yum install nmap
  103  sudo dd if=/dev/zero of=/dev/null &
  104  sudo top
  105  sudo kill -9 10637
  106  history