RHCSA day1 nov21

[root@localhost ~]# history
    1  tar -cvzf /root/archive.tgz /etc
    2  ls -l
    3  tar -tvf archive.tgz
    4  cat /etc/dnsmasq.conf | sed '/^$/d' | sort
    5  cat /etc/dnsmasq.conf | sed '/^$/d' | sort > /var/tmp/dnslines.txt
    6  useradd bob
    7  mkdir /root/usersfiles; find / -user bob -exec cp {} /root/userfiles/ \;
    8  mkdir /root/userfiles; find / -user bob -exec cp {} /root/userfiles/ \;
    9  ls userfiles/
   10  ls -Ra userfiles/
   11  dnf install -y git
   12  vim countdown
   13  ./countdown 12
   14  ls -l
   15  chmod +x countdown
   16  ./countdown 12
   17  less /etc/passwd
   18  id bob
   19  su - bob
   20  id student
   21  visudo
   22  vim /etc/login.defs
   23  passwd bob
   24  grep bob /etc/shadow
   25  vim /etc/login.defs
   26  useradd whoeve3r
   27  passwd whoeve3r
   28  tail -5 /etc/shadow
   29  ls /etc/skel
   30  ls -a /etc/skel
   31  ls -a /home/bob
   32  passwd --help | less
   33  passwd -l bob
   34  tail -5 /etc/shadow
   35  chage --help
   36  chage -l bob
   37  groupadd dudes
   38  usermod -aG dudes bob
   39  id bob
   40  grep bob /etc/passwd
   41  grep bob /etc/group
   42  id bob
   43  passwd -S
   44  passwd -S bob
   45  vim /etc/ssh/sshd_config
   46  ls -l /home
   47  ls -l /etc/hosts
   48  mkdir -p /data/sales
   49  cd /data
   50  ls -l
   51  groupadd sales
   52  usermod -aG sales bob
   53  id
   54  chgrp sales /data/sales
   55  ls -l
   56  chmod 770 sales
   57  ls -l
   58  history
   59  cd
   60  useradd linda
   61  cd /home/linda
   62  vim runme
   63  chmod +x runme
   64  su - linda
   65  chmod u+s runme
   66  ls -l
   67  find / -perm /4000 2>/dev/null
   68  find / -perm /4000 -exec ls -l {} \; 2>/dev/null
   69  ls -l /etc/shadow
   70  #find / -perm /4000 -exec ls -l {} \; 2>/dev/null
   71  pwd
   72  touch removeme
   73  su - linda
   74  touch writeme
   75  su - linda
   76  cd
   77  ./countdown 12
   78  man find
   79  find / -perm /6000 -exec ls {} \;
   80  find / -perm /6000 -exec ls -l {} \;
   81  for i in find / -perm /4000;
   82  find / -perm /6000 -exec ls -l {} \;
   83  find / -perm /6000
   84  for i in find / -perm /4000 2>/dev/null; do ls -l $i; done
   85  for i in $(find / -perm /4000); do ls -l $i; done
   86  strace -c for i in $(find / -perm /4000); do ls -l $i; done
   87  strace -c "for i in $(find / -perm /4000); do ls -l $i; done"
   88  vim countdown
   89  ./countdown 1
   90  vim countdown
   91  ./countdown 5
   92  vim countdown
   93  history
   94  strace -f /bin/bash -c 'for i in $(find / -perm /4000); do ls -l $i; done'
   95  strace -c -f /bin/bash -c 'for i in $(find / -perm /4000); do ls -l $i; done'
   96  strace -c find / -perm /6000 -exec ls -l {} \;
   97  strace -c -f /bin/bash -c 'for i in $(find / -perm /4000); do ls -l $i; done'
   98  strace -c -f find / -perm /6000 -exec ls -l {} \;
   99  grep sales /etc/group
  100  useradd -aG sales linda
  101  usermod -aG sales linda
  102  grep sales /etc/group
  103  cd /data
  104  ls -l
  105  su - bob
  106  su - linda
  107  chmod g+s sales
  108  ls -l
  109  su - bob
  110  su - linda
  111  chmod +t /data/sales
  112  ls -l
  113  su - linda
  114  chown linda sales
  115  ls -l
  116  su - linda
  117  history
  118  cd
  119  ./countdown 10
  120  vim countdown
  121  ./countdown 10
  122  groupadd students
  123  groupadd profs
  124  vim /etc/login.defs
  125  groupadd -G students lisa
  126  useradd -G students lisa
  127  usermod -aG students linda
  128  useradd -G profs anna
  129  useradd -G profs anouk
  130  mkdir -p /data/profs /data/students
  131  cd /data
  132  chgrp students students
  133  chgrp profs profs
  134  chmod 3770 profs
  135  chmod 3770 students/
  136  ls -l
  137  chown anna students/
  138  chown anna profs
  139  ls -l
  140  cd
  141  ./countdown 13
  142  lsblk
  143  poweroff
  144  man find
  145  useradd --help
  146  passwd --help
  147  lsblk
  148  fdisk /dev/sda
  149  lsblk
  150  mkfs.xfs /dev/sda3
  151  mkdir /files
  152  vim /etc/fstab
  153  mount -a
  154  vim /etc/fstab
  155  mount -a
  156  lsblk
  157  mount
  158  mount | wc
  159  mount | grep '^/'
  160  lsblk
  161  history