RHCSA may22 day1

[root@localhost ~]# history
    1  vim countdown.sh
    2  chmod +x countdown.sh
    3  ./countdown.sh 16
    4  exit
    5  tar -czvf /root/archive.tgz /etc
    6  ls -l /root/archive.tgz
    7  tar tvf /root/archive.tgz
    8  grep -v '^$' /etc/dnsmasq.conf
    9  grep -v '^$' /etc/dnsmasq.conf | sort > /var/tmp/dnslines.txt
   10  useradd linda
   11  find / -user linda
   12  find / -user linda 2>/dev/null
   13  mkdir /root/userfiles; find / -user linda -exec cp {} /root/userfiles \;
   14  history
   15  ./countdown.sh 13
   16  ./countdown.sh 12
   17  cat countdown.sh
   18  #tar -cvzf /root/archive2.tgz /etc
   19  history
   20  vim countdown.sh
   21  git clone https://github.com/sandervanvugt/rhcsa
   22  cat /etc/passwd
   23  head -1 /etc/passwd
   24  tail /etc/group
   25  id student
   26  id linda
   27  su - linda
   28  passwd lindaA
   29  su - linda
   30  usermod -aG wheel linda
   31  id linda
   32  su - linda
   33  history
   34  vim /etc/login.defs
   35  cd /etc/skel/
   36  ls
   37  ls -a
   38  ls -a /home/linda
   39  pwd
   40  passwd --help
   41  chage linda
   42  grep linda /etc/shadow
   43  man 5 shadow
   44  cd
   45  grep linda /etc/passwd
   46  grep linda /etc/group
   47  id linda
   48  ls -l
   49  chmod -x countdown.sh
   50  ls -l
   51  ./countdown.sh
   52  chmod +x countdown.sh
   53  ./countdown.sh
   54  countdown.sh
   55  mkdir /data/files
   56  mkdir -p /data/files
   57  cd /data
   58  groupadd sales
   59  usermod -aG sales linda
   60  mkdir sales
   61  ls -l
   62  chgrp sales sales
   63  ls -l
   64  chmod 770 sales
   65  ls -l
   66  chmod g-x sales
   67  ls -l
   68  chmod g+x sales
   69  ls -l
   70  cd sales
   71  touch myfile
   72  ls -l
   73  ln -s myfile linkfile
   74  ls -l
   75  history
   76  cd
   77  ./countdown.sh 12
   78  pwd
   79  cd /home/linda
   80  touch rootfile
   81  ls -l
   82  su - linda
   83  pwd
   84  vim playme.sh
   85  chmod +x playme.sh
   86  su - linda
   87  chmod u+s playme.sh
   88  ls -k
   89  ls -l
   90  find / -perm /4000 2>/dev/null
   91  find / -perm /4000 -exec ls -l {} \; 2>/dev/null
   92  ls -l /etc/shadow
   93  tail -1 /etc/shadow
   94  useradd -G sales lisa
   95  grep sales /etc/group
   96  passwd lisa
   97  su - lisa
   98  chmod g+s /data/sales
   99  ls -ld /data/sales
  100  su - lisa
  101  cd /data
  102  chmod +t sales/
  103  ls -l
  104  su - lisa
  105  ls -l
  106  chgrp wheel files
  107  ls -l
  108  xxd -l 512 /dev/sda
  109  lsblk
  110  xxd -l 512 /dev/nvme0n1
  111  fdisk -l /dev/nvme0n1
  112  poweroff
  113  ./countdown.sh 12
  114  lsblk
  115  ls -l /dev/nv*
  116  fdisk /dev/nvme0n1
  117  lsblk
  118  mkfs.xfs /dev/nvme0n1p3
  119  mount /dev/nvme0n1p3 /mnt
  120  findmnt
  121  lsblk
  122  cd /mnt
  123  ls
  124  cp /etc/hosts .
  125  ls
  126  umount /mnt
  127  lsof .
  128  cd
  129  umount /mnt
  130  vim /etc/fstab
  131  mount -a
  132  mkdir /files
  133  mount -a
  134  reboot
  135  who
  136  history
  137  exit
  138  lsblk
  139  history
  140  cd /files/
  141  ls
  142  lsblk
  143  history
  144  exit
  145  history
  146  fdisk /dev/nvme0n1
  147  reboot
  148  lsblk
  149  mkfs.xfs /dev/nvme0n1p5
  150  mkfs.ext4 /dev/nvme0n1p6
  151  mkdir /xfs
  152  mkdir /ext4
  153  vim /etc/fstab
  154  mount -a
  155  lsblk
  156  touch /ext4/myext4file
  157  history