RHCSA day 2 sept22

[root@localhost ~]# history
    1  vim countdown
    2  bash ./countdown 10
    3  vim countdown
    4  bash ./countdown 10
    5  exit
    6  rm -f /etc/sudoers.d/this
    7  bash countdown 12
    8  ssh 192.168.29.21
    9  dnf search tmux
   10  man cp
   11  visudo
   12  su - bob
   13  passwd bob
   14  su - bob
   15  which useradd
   16  which usermod
   17  which passwd
   18  visudo
   19  su - bob
   20  visudo
   21  su - bob
   22  visudo
   23  useradd --help | less
   24  history
   25  history -d 24
   26  history
   27  echo password | passwd --stdin bob
   28  vim /etc/login.defs
   29  chage bob
   30  grep bob /etc/shadow
   31  man 5 shadow
   32  cat /etc/passwd
   33  usermod -s /sbin/nologin bob
   34  su - bob
   35  usermod -s /bin/passwd bob
   36  su - bob
   37  lid\
   38  lid
   39  reset
   40  lid -g wheel
   41  grep wheel /etc/group
   42  usermod --help
   43  groupmod --help
   44  groupadd aaa
   45  groupadd bbb
   46  groupadd ccc
   47  groupadd ddd
   48  useradd whoever -G aaa
   49  id whoever
   50  usermod -G bbb whoever
   51  id whoever
   52  usermod -aG aaa whoever
   53  groupmod -U whoever ccc
   54  id whoever
   55  groupod -U bob ccc
   56  group,od -U bob ccc
   57  groupmod -U bob ccc
   58  lid -g ccc
   59  groupmod -aU whoever ccc
   60  lid -g ccc
   61  bash countdown 15
   62  ldd lid
   63  which lid
   64  which /sbin/lid
   65  ldd /sbin/lid
   66  ldd $(which getent)
   67  cd /etc/pam.d/
   68  ls
   69  vim passwd
   70  vim system-auth
   71  cd
   72  vim /etc/login.defs
   73  cd /etc/skel/
   74  touch myfile
   75  for i in anna anouk linda lisa; do useradd $i; done
   76  cat /etc/passwd
   77  for i in anna anouk linda lisa; do echo password | passwd --stdin $i; done
   78  groupadd students
   79  groupadd profs
   80  usermod -aG profs anna
   81  usermod -aG profs anouk
   82  usermod -aG linda students
   83  usermod -aG students linda
   84  usermod -aG students lisa
   85  history
   86  cd
   87  vim myblah
   88  for in in `cat myblah`;do echo $i is in myblah; done
   89  usermod -aG
   90  cd /home
   91  ls -l
   92  cd
   93  vim permissions.txt
   94  cat permissions.txt
   95  mkdir specialx
   96  cp /etc/[a-e]* specialx/
   97  ls -l specialx/
   98  ls -ld specialx/
   99  chmod -x specialx/
  100  ls -ld specialx/
  101  chmod -R +x specialx/
  102  ls -ld specialx/
  103  ls -l specialx/
  104  chmod -R -x specialx/
  105  ls -l specialx/
  106  ls -ld specialx/
  107  chmod -R +X specialx/
  108  ls -ld specialx/
  109  ls -l specialx/
  110  history
  111  mkdir -p /data/profs /data/students
  112  ls -l /data
  113  chown :profs /data/profs
  114  chgrp students /data/students
  115  ls -l /data
  116  chmod 770 /data/students
  117  ls -l /data
  118  chmod g+w,o-rx /data/profs
  119  ls -l /data
  120  #usermod -aG profs kees tom
  121  #usermod -aG profs tom
  122  usermod --help | less
  123  usermod -aG students,profs bob
  124  id bob
  125  cd /home/linda
  126  ls l
  127  ls -l
  128  touch rootfile
  129  su - linda
  130  chattr +i hhh
  131  lsattr
  132  rm -f hhh
  133  chattr -i hhh
  134  rm hhh
  135  su - anna
  136  chmod g+s /data/profs
  137  su - anna
  138  su - anouk
  139  chmod +t /data/profs
  140  ls -ld /data/profs
  141  su - anouk
  142  umask
  143  touch um1
  144  umask 027
  145  touch um2
  146  ls -l um*
  147  mkdir udir1
  148  ls -ld udir1/
  149  umask 022
  150  mkdir udir2
  151  ls -ld ud*
  152  vim /etc/bashrc
  153  vim .bashrc
  154  su - linda
  155  cd
  156  ./countdown 15
  157  ls -l countdown
  158  chmod +x countdown
  159  ./countdown 15
  160  mkdir -p /files/profs /files/students
  161  umask 007
  162  cd /files
  163  chgrp profs profs
  164  chgrp students students
  165  chmod 770 *
  166  ls -l
  167  exit
  168  tar czvf /root/archive.tgz /etc
  169  grep -v '^$' /etc/dnsmasq.conf |sort > /var/tmpdnslines.txt
  170  less /var/tmpdnslines.txt
  171  vim sortfile
  172  sort sortfile
  173  useradd bob
  174  mkdir /root/userfiles; find / -user bob -exec cp -rf {} /root/userfiles/ \;
  175  ls /root/userfiles/
  176  find / -user bob -exec cp {} /root/bobfiles \;
  177  ls
  178  file bobfiles
  179  find / -user bob -exec cp {} /root/bobfilestwo/ \;
  180  find / -user bob -exec cp -rf {} /root/bobfilesthree/ \;
  181  ls
  182  ls bobfilesthree/
  183  visudo
  184  vim /etc/sudoers.d/this
  185  lsblk
  186  vim /etc/bashrc
  187  vim .bashrc
  188  su - lisa
  189  vim /etc/bashrc
  190  cd /etc/skel/
  191  ls -a
  192  vim .bashrc
  193  vim /etc/login.defs
  194  cd
  195  poweroff
  196  touch dd
  197  lsblk
  198  blkid
  199  cp /etc/fstab /etc/fstab.bak
  200  grep sda3 /etc/fstab
  201  blkid | grep sda3
  202  blkid | grep sda3 | awk '{ print $2 }'
  203  blkid | grep sda3 | awk '{ print $2 }' >> /etc/fstab
  204  vim /etc/fstab
  205  reboot
  206  history
  207  lsblk -o UUID /dev/sda3
  208  vim /etc/fstab
  209  mount -o remount,rw /
  210  history
  211  rpm -qf $(which useradd)
  212  rpm -qf `which useradd`
  213  poweroff
  214  cd /etc/default/
  215  vim grub
  216  grub2-mkconfig -o /boot/grub2/grub.cfg
  217  vim grub
  218  grub2-mkconfig -o /boot/grub2/grub.cfg
  219  reboot
  220  systemctl list-units -t target
  221  systemctl get-default
  222  history
  223  reboot
  224  history