linfun day1 jan22

#### SETTING UP SSH ON UBUNTU
   74  ip addr show
   75  whoami
   76  id
   77  sudo apt install openssh-server
   78  sudo systemctl status sshd

#######[student@localhost /]$ history
    1  cat /etc/os-release
    2  pwd
    3  ls
    4  ls -a
    5  ls .ssh/
    6  cat .ssh/known_hosts
    7  ssh 192.168.29.199
    8  sudo useradd bob
    9  sudo passwd bob
   10  su - bob
   11  history
   12  w
   13  exit
   14  vi countdown
   15  countdown
   16  echo $PATH
   17  ./countdown
   18  ls -l countdown
   19  chmod +x countdown
   20  ./countdown 12
   21  history
   22  cat countdown
   23  vi countdown
   24  echo $(( 2 x 2 ))
   25  echo $(( 2 * 2 ))
   26  vi countdown
   27  which true
   28  vi countdown
   29  countdown
   30  echo $PATH
   31  which true
   32  pwd
   33  ls -l countdown
   34  ls
   35  chmod +x countdown
   36  ./countdown 12
   37  history
   38  echo $PATH
   39  cp countdown /usr/local/bin
   40  ls /usr/local/bin
   41  ls -ld /usr/local/bin
   42  whoami
   43  sudo cp countdown /usr/local/bin
   44  countdown 0
   45  which countdown
   46  history
   47  ls -l /etc/shadow
   48  cat /etc/shadow
   49  sudo cat /etc/shadow
   50  ls -l /etc/shadow
   51  id
   52  useradd linda
   53  sudo useradd linda
   54  tail /etc/passwd
   55  sudo passwd linda
   56  history
   57  su - linda
   58  sudo usermod -aG wheel linda
   59  id linda
   60  su - linda
   61  history | tail -10
   62  countdown 12
   63  ssh [email protected]
   64  history
   65  exit
   66  history
   67  ls -a
   68  ls
   69  LS
   70  uname --help
   71  uname -a
   72  uname --all
   73  uname -srv
   74  uname --srv
   75  df --help
   76  df -h
   77  df --help
   78  whoami
   79  whoami --help
   80  hostname
   81  hostname --help
   82  who am i
   83  whoami
   84  who --help
   85  who mom likes
   86  ssh [email protected]
   87  date
   88  date --help | less
   89  date %N
   90  date +%d-%m-%y
   91  date +%d-%m-%y:%h:%m:%N
   92  uname --help | less
   93  uname -op
   94  uname -p
   95  uname -po
   96  passwd --help | less
   97  sudo dnf install tldr
   98  ssh [email protected]
   99  sudo dnf repolist
  100  sudo dnf install epel-release
  101  sudo dnf repolist
  102  sudo dnf install tldr
  103  tldr lvcreate
  104  tldr semanage
  105  history
  106  touch helloworld
  107  ls -l
  108  touch /usr/bin/helloworld
  109  touch helloworld
  110  ls -l
  111  last
  112  sudo dnf provides */semanage
  113  countdown 12
  114  tldr ls
  115  man ls
  116  info '(coreutils) ls invocation'
  117  pinfo '(coreutils) ls invocation'
  118  man lvcreate
  119  man -k user
  120  mandb
  121  sudo mandb
  122  man -k user
  123  man -k user | wc
  124  man -k user
  125  man man
  126  man -k user | grep 8
  127  cd /etc
  128  ls
  129  sudo vi sudoers
  130  ls -lrt
  131  cd /var/log
  132  ls -lrt
  133  tail messages
  134  sudo tail messages
  135  cd /etc
  136  ls l
  137  ls l*
  138  ls -d l*
  139  ls -d l?.*
  140  ls [klm]* -d
  141  ls [k-m]* -d
  142  mkdir blah
  143  pwd
  144  cd
  145  pwd
  146  mkdir myfiles
  147  cd myfiles/
  148  ls
  149  pwd
  150  cd ..
  151  cd -
  152  cd ../..
  153  rmdir student/myfiles/
  154  cd
  155  mkdir myfiles
  156  cp /etc/[a-d]* myfiles/
  157  ls myfiles/
  158  rmdir myfiles
  159  rm -rf myfiles/
  160  sudo dnf search epel
  161  man fhs
  162  man hier
  163  cd /
  164  ls
  165  history