linfun day1 feb23

ON UBUNTU
t@student-virtual-machine:~$ history
    1  cat /etc/os-release
    2  ip a
    3  sudo systemctl status sshd
    4  history
    5  exit
    6  sudo systemctl status sshd
    7  sudo systemctl status ssh
    8  history
    9  sudo apt install openssh-server
   10  man -k user
   11  exit
   12  id
   13  ps aux
   14  ps aux | grep ssh
   15  sudo apt install openssh-server
   16  cat /etc/os-release
   17  history
   18  ps aux | grep ssh
   19  ip a
   20  history
   21  exit
   22  history


ON CENTOS[student@localhost ~]$ history
    1  ip a
    2  history
    3  sudo systemctl status sshd
    4  echo POST -> BIOS -> boot disk -> GRUB2 boot manager -> kernel = linux
    5  sudo useradd lisa
    6  sudo passwd lisa
    7  su - lisa
    8  sudo usermod -aG wheel lisa
    9  sudo id lisa
   10  su - lisa
   11  history
   12  vim countdown
   13  chmod +x countdown
   14  ./countdown 12
   15  history
   16  ls
   17  LS
   18  uname --help
   19  ls -lrt
   20  ls --lrt
   21  ps aux
   22  ps -aux
   23  whoami --help
   24  useradd --help
   25  whoami
   26  hostname
   27  hostname --help
   28  date
   29  date --help | less
   30  logname --help
   31  which logname
   32  which whoami
   33  ls -l $(which logname) $(which whoami)
   34  uname
   35  uname --help
   36  uname -a
   37  uname -r
   38  passwd --help | less
   39  passwd --help
   40  last
   41  history
   42  hostnamectl
   43  uname --help
   44  man uname
   45  man lvcreate
   46  man man
   47  man -k user
   48  man man
   49  man apropos
   50  man mandb
   51  mandb
   52  man mandb
   53  sudo mandb
   54  man -k user
   55  man -k user |wc
   56  man -k user | grep 8
   57  man ls
   58  pinfo '(coreutils) ls invocation'
   59  history
   60  man -k passwd | grep 5
   61  man passwd
   62  man 5 passwd
   63  ./countdown 12
   64  echo LPI
   65  echo Linux+
   66  echo LFCS
   67  echo RHCSA
   68  cat countdown
   69  vim countdown
   70  echo $(( 5 + 5 ))
   71  echo $(( 3487658 * 876876 ))
   72  vim countdown
   73  chmod -x countdown
   74  countdown
   75  echo $PATH
   76  pwd
   77  ./countdown
   78  ls -l countdown
   79  chmod +x countdown
   80  ./countdown
   81  echo $(( 4 * 4 ))
   82  ls -l $(which ls)
   83  ls -l $(which useradd)
   84  history
   85  cat countdown
   86  lsblk
   87  ls /etc
   88  cat /etc/passwd
   89  pwd
   90  sudo cd /var/log
   91  sudo -i
   92  history
   93  ls
   94  ls -a
   95  ls -al
   96  ls -l /etc
   97  ls -ld /etc
   98  ls -lrt /etc
   99  ls /etc/a*
  100  ls -d /etc/a*
  101  ls -d /etc/a?.*
  102  ls -d /etc/a[nl]?*
  103  ls -d /etc/a[l-n]?*
  104  ls -d /etc/a[l-w]?*
  105  cd /tmp
  106  mkdir testdir
  107  cd testdir/
  108  pwd
  109  ls
  110  cd ..
  111  pwd
  112  rmdir testdir
  113  mkdir testdir
  114  cd testdir
  115  touch afile[1..10]
  116  ls
  117  touch afile{1..10}
  118  ls
  119  cd ..
  120  rmdir testdir/
  121  rm -rf testdir/
  122  history
  123  exit
  124  ls
  125  whoami
  126  ls -l /root
  127  sudo ls -l /root
  128  ls -l /root
  129  sudo ls -l /root
  130  sudo -i
  131  id
  132  ssh 192.168.29.156
  133  history
  134  ssh 192.168.29.156
  135  history
  136  exit
  137  history