RHCSA day1 july22

[root@localhost ~]# history
    1  vim countdown
    2  chmod +x countdown
    3  ./countdown 14
    4  vim countdown
    5  ./countdown 14
    6  tar -czf /root/archive.tgz /etc
    7  ls -l archive.tgz
    8  file archive.tgz
    9  tar tvf archive.tgz
   10  history
   11  grep -v '^$' /etc/dnsmasq.conf | sort > /var/tmp/dnslines.txt
   12  echo $USER
   13  useradd bob
   14  find / -user bob
   15  mkdir /root/userfiles ; find / -user bob -exec cp {} /root/userfiles/ \;
   16  find / -user bob
   17  find / -user bob -t file
   18  find / -user bob
   19  find / -user bob -type f
   20  visudo
   21  useradd lisa
   22  passwd lisa
   23  visudo
   24  su - lisa
   25  visudo
   26  su - lisa
   27  ls -ld /etc/sudoers.d/
   28  ls -l /etc/sudoers.d/
   29  vim /etc/sudoers.d/bob
   30  visudo
   31  man visudo
   32  visudo
   33  ./countdown 12
   34  tail /etc/shadow
   35  usermod -L bob
   36  tail /etc/shadow
   37  passwd --help
   38  passwd -u bob
   39  tail /etc/shadow
   40  vim /etc/passwd
   41  vim /etc/login.defs
   42  echo $(( 99999 / 365 ))
   43  vim /etc/login.defs
   44  useradd --help | less
   45  groupadd sales
   46  usermod -aG sales student
   47  exit
   48  lid -g wheel
   49  lid sales
   50  lid -g sales
   51  chage bob
   52  vim /etc/login.defs
   53  cd /etc/skel/
   54  ls -a
   55  echo hidem > .hiddenfile
   56  echo hello > hellofile
   57  ls -a
   58  for i in anna anouk linda lisa; do useradd $i; done
   59  tail /etc/shadow
   60  usermod --help
   61  usermod -s /sbin/nologin linda
   62  usermod -s /sbin/nologin lisa
   63  groupadd students
   64  groupadd profs
   65  usermod -aG profs anna
   66  usermod -aG profs anouk
   67  id anna
   68  usermod -aG wheel anna
   69  id anna
   70  usermod -G wheel anna
   71  id anna
   72  history
   73  usermod -s /bin/bash linda
   74  usermod -s /bin/bash lisa
   75  usermod -aG students linda
   76  usermod -aG students lisa
   77  cd
   78  ./countdown 12
   79  tail /etc/group
   80  usermod -aG profs anna
   81  tail /etc/group
   82  cd
   83  mkdir /data/profs /data/students
   84  mkdir -p /data/profs /data/students
   85  cd /data
   86  ls -l
   87  chown anna:profs profs
   88  chgrp student students/
   89  ls -l
   90  chmod 770 profs
   91  ls -l
   92  chmod g+w,o-rx students/
   93  ls -l
   94  cd
   95  chmod -x countdown
   96  cat countdown
   97  ./countdown
   98  ls -l countdown
   99  chmod +x countdown
  100  ls -l countdown
  101  history
  102  cd /data/profs/
  103  su - anna
  104  chmod g+s .
  105  ls -ld .
  106  su - anna
  107  su - anouk
  108  chmod +t .
  109  ls -ld .
  110  su - anouk
  111  su - anna
  112  history
  113  cd
  114  cd /home/linda
  115  touch rootfile
  116  ls -l
  117  su - linda
  118  umask
  119  vim /etc/bashrc
  120  pwd
  121  vim .bashrc
  122  ls -a
  123  vim .bash_profile
  124  cd
  125  lsblk
  126  poweroff
  127  lsblk
  128  cat /proc/partitions
  129  ./countdown 12
  130  lsblk
  131  fdisk /dev/sda
  132  lsblk
  133  mkfs.xfs /dev/sda3
  134  mount /dev/sda3 /mnt
  135  lsblk
  136  mount
  137  df -h
  138  cd /mnt
  139  touch hellofile
  140  umount /mnt
  141  lsof /mnt
  142  cd
  143  umount /mnt
  144  mount /dev/sda3 /mnt
  145  mount
  146  mount | grep '^/'
  147  mkdir /mountpoint
  148  vim /etc/fstab
  149  mount -a
  150  findmnt --verify
  151  reboot
  152  fdisk /dev/sda
  153  lsblk
  154  mkdir /ext4 /xfs
  155  mkfs.ext4 /dev/sda5
  156  mkfs.xfs /dev/sda6
  157  vim /etc/fstab
  158  fdisk /dev/sda
  159  reboot
  160  cat /etc/fstab
  161  lsblk
  162  blkid
  163  blkid | grep sda5 | awk '{ print $2 }'
  164  blkid | grep sda5 | awk '{ print $2 }' >> /etc/fstab
  165  vim fstab
  166  vim /etc/fstab
  167  reboot
  168  history