RHCSA day1 may21

[root@rhcsa ~]# history
    1  history
    2  exit
    3  tar cvzf /root/archive.tgz /etc
    4  ls -l
    5  file archive.tgz
    6  cat /etc/dnsmasq.conf
    7  cat /etc/dnsmasq.conf | grep -v '^$'
    8  cat /etc/dnsmasq.conf | grep -v '^$' | sort
    9  vim whatever
   10  cat whatever | grep -v '^$' | sort
   11  cat /etc/dnsmasq.conf | grep -v '^$' | sort
   12  useradd lisa
   13  find / -user lisa
   14  mkdir /root/userfiles; find / -user lisa -exec cp {} /root/userfiles \;
   15  cat /etc/dnsmasq.conf | grep -v '^$' | sort > /var/tmp/dnslines.txt
   16  history
   17  vim countdown
   18  chmod +x countdown
   19  ./countdown 12
   20  history
   21  vim countdown
   22  less /etc/passwd
   23  grep student /etc/passwd
   24  id student
   25  less /etc/passwd
   26  vim /etc/login.defs
   27  cd /etc/skel/
   28  ls
   29  ls -a
   30  touch hello
   31  ls -a
   32  useradd linda
   33  grep linda /etc/passwd
   34  ls -al /home/linda
   35  vim /etc/default/useradd
   36  id linda
   37  vim /etc/login.defs
   38  history
   39  visudo
   40  cd
   41  su - linda
   42  passwd linda
   43  su - linda
   44  id linda
   45  usermod -aG wheel linda
   46  id linda
   47  su - linda
   48  cd /etc/skel/
   49  ls
   50  ls -a
   51  vim .bash_logout
   52  cd .mozilla/
   53  ls
   54  cd ..
   55  cd
   56  man su
   57  exit
   58  ./countdown 12
   59  passwd --help |less
   60  passwd -l linda
   61  passwd --help |less
   62  passwd -S linda
   63  grep linda /etc/shadow
   64  passwd -u linda
   65  grep linda /etc/shadow
   66  chage linda
   67  ls
   68  ./countdown 12
   69  ssh localhost
   70  vim /etc/ssh/sshd_config
   71  passwd --help
   72  cd /etc
   73  ls -l
   74  cd
   75  chmod -x countdown
   76  ls -l countdown
   77  ./countdown
   78  chmod +x countdown
   79  ./countdown 0
   80  mkdir /data/sales
   81  mkdir -p /data/sales
   82  mkdir -p /data/account
   83  cd /data
   84  ls -l
   85  groupadd sales
   86  groupadd account
   87  usermod -aG sales linda
   88  usermod -aG sales lisa
   89  id linda
   90  id lisa
   91  useradd --help
   92  useradd -G account anna
   93  useradd -G account anouk
   94  id anna
   95  passwd lisa
   96  history
   97  history -d 97
   98  history -d 96
   99  history -d 95
  100  echo password | passwd --stdin anna
  101  ls -l
  102  chgrp account account
  103  ls -l
  104  chgrp sales sales
  105  ls
  106  for i in *; do echo $i; done
  107  for i in *; do chgrp $i $i; done
  108  ls -l
  109  chmod 770 *
  110  ls -l
  111  su - linda
  112  su - lisa
  113  cd /home/linda
  114  vim playme
  115  chmod +x playme
  116  su - linda
  117  chmod u+s playme
  118  ls -l
  119  su - linda
  120  find / -perm /4000 2>/dev/null
  121  ls -l /usr/bin/passwd
  122  ls -l /etc/shadow
  123  cat /etc/shadow
  124  ls -l /etc/shadow
  125  cd /data/sales
  126  ls -l
  127  chmod g+s .
  128  ls -ld .
  129  su - linda
  130  su - lisa
  131  chmod +t .
  132  ls -ld .
  133  su - lisa
  134  /root/countdown 12
  135  ls -ld .
  136  cd ..
  137  chmod 3770 *
  138  ls -k
  139  ls -l
  140  chmod o+x *
  141  ls -l
  142  chmod o-x *
  143  ls -l
  144  ls -lr *
  145  setfacl -R -m g:account:rx sales
  146  cd sales
  147  ls -l
  148  man setfacl
  149  setfacl -R -x g:account sales
  150  cd ..
  151  setfacl -R -x g:account sales
  152  ls -l sales
  153  setfacl -R -m g:account:rX sales
  154  ls -l sales/
  155  ls -l sales
  156  ls -ld sales
  157  getfacl sales
  158  setfacl -m d:g:account:rx sales
  159  getfacl sales
  160  su - linda
  161  lsblk
  162  fdisk /dev/sda
  163  lsblk
  164  mkfs.xfs /dev/sda3
  165  mount /dev/sda3 /mnt
  166  history