Jun 03 19:48:49 linfun2.example.com systemd[1]: Started The Apache HTTP Server.
Jun 03 19:49:09 linfun2.example.com httpd[64657]: Server configured, listening on: port 80
[root@linfun2 log]# history
    1  exit
    2  su - linda
    3  sudo passwd linda
    4  su - linda
    5  exit
    6  exit
    7  systemctl status sshd
    8  apt install openssh-server
    9  systemctl enable --now sshd
   10  ip a
   11  firewall-cmd --list-all
   12  ip a
   13  exit
   14  cd /
   15  ls
   16  ls -l
   17  cd
   18  ls
   19  ls -a
   20  ls -ld /etc
   21  ls -l /etc
   22  ls -lrt /etc/
   23  cat /etc/shadow
   24  ls -lrt /etc/
   25  cd /etc
   26  ls a*
   27  ls -d a*
   28  ls -d a?*
   29  ls -d a?t*
   30  ls -d a?[td]*
   31  cd /
   32  cd
   33  mkdir hello
   34  rmdir hello
   35  cd /
   36  ls -l
   37  cd /var/log
   38  ls -l
   39  du -hs
   40  cd /home
   41  ls -l
   42  ls -ld /tmp
   43  cd student
   44  touch studentfile
   45  cp studentfile ../linda/
   46  ls
   47  cp countdown /somedir
   48  ls -l /somedir
   49  rm /somedir
   50  cp countdown /somedir/
   51  mkdir /somedir
   52  cp countdown /somedir/
   53  LS
   54  cp -Ra .* /tmp/student/
   55  mkdir /tmp/student/
   56  cp -Ra .* /tmp/student/
   57  rm -rf /tmp/student
   58  pwd
   59  mkdir /tmp/student; cp -Ra .* /tmp/student/
   60  mkdir /tmp/student; cp -R .* /tmp/student/
   61  ls
   62  pwd
   63  mv studentfile /tmp/
   64  ls
   65  mv q qfile
   66  ln /etc/hosts myhosts
   67  ls -il /etc/hosts myhosts
   68  echo hello >> myhosts
   69  cat myhosts
   70  ls -il /etc/hosts myhosts
   71  ln -s /etc/hosts symhosts
   72  ls -il /etc/hosts myhosts symhosts
   73  rm /etc/hosts
   74  ls -il /etc/hosts myhosts symhosts
   75  cat symhosts
   76  ln myhosts /etc/hosts
   77  ls -il /etc/hosts myhosts symhosts
   78  cd /
   79  ls -l
   80  cd /root
   81  ln /boot/vmlinuz-4.18.0-147.el8.x86_64 mykernel
   82  ln -s /boot/vmlinuz-4.18.0-147.el8.x86_64 mykernel
   83  ln /etc myetc
   84  ln -s /etc myetc
   85  vim myscript
   86  chmod +x myscript
   87  ./myscript
   88  find / -name "hosts"
   89  find / -name "*hosts*"
   90  tail /etc/passwd
   91  find / -user linda
   92  find / -user linda 2>/dev/null
   93  find / -size +100M
   94  mkdir /root/linda; find / -user linda -exec cp {} /root/linda/ \;
   95  tar -cvf myarchive
   96  tar -cvf myarchive /home /etc
   97  ls -l myarchive
   98  file myarchive
   99  tar -tvf  myarchive
  100  tar -xvf  myarchive
  101  ls
  102  pwd
  103  rm -rf etc home
  104  ls -l myarchive
  105  tar czvf myarchive.tgz /etc/ /home
  106  ls -l myarch*
  107  tar -cjvf myarchive.bz2 /home /etc
  108  ls -l myarch*
  109  history
  110  ls
  111  man tar
  112  history
  113  xz myarchive
  114  ls myarchive*
  115  ls -l myarchive*
  116  vim myvimdemo
  117  less /var/log/messages
  118  more /var/log/messages
  119  cat /etc/hosts
  120  tac /etc/hosts
  121  tail -n 5 /var/log/messages
  122  head -n 5 /var/log/messages
  123  man type
  124  type passwd
  125  type ls
  126  alias
  127  alias sander='echo hello world'
  128  sander
  129  cd /etc
  130  grep lisa *
  131  grep lisa * 2>/dev/null
  132  grep linda * 2>/dev/null
  133  grep -l linda * 2>/dev/null
  134  grep linda * 2>/dev/null
  135  grep linda * 2>/dev/null | grep -v bash
  136  grep -Rl linda *
  137  grep -l root * 2>/dev/null
  138  grep -lR root * 2>/dev/null
  139  cd /
  140  grep -l sander *
  141  grep -lR sander *
  142  find / -name countdown
  143  echo $PATH
  144  ln /usr/local/bin/countdown /usr/bin/countdown
  145  countdown 13
  146  cd
  147  vim myfile
  148  grep 'read' myfile
  149  grep '^read' myfile
  150  grep '^read$' myfile
  151  man semanage-fcontext
  152  history
  153  cut linda /etc/passwd
  154  cut -d : -f 1 /etc/passwd
  155  cut -d : -f 1 /etc/passwd | grep linda
  156  cut -d : -f 1 /etc/passwd | sort
  157  cut -d : -f 1 /etc/passwd | sort -n
  158  vim number
  159  sort number
  160  sort -n number
  161  echo hello | tr [:lower:][:upper:]
  162  echo hello | tr [:lower:] [:upper:]
  163  echo hello | tr a-z A-Z
  164  sed -n 5p /etc/passwd
  165  head -5 /etc/passwd
  166  head -5 /etc/passwd | tail -1
  167  cat myfile
  168  sed -i s/red/read/g myfile
  169  cat myfile
  170  sed -i -e '2d' myfile
  171  cat myfile
  172  cp myfile yourfile
  173  ls
  174  mv myfile myfile.txt
  175  mv yourfile yourfile.txt
  176  ls *txt
  177  cat myfile.txt; cat yourfile.txt; for i in *txt; do sed -i -e '2d' $i; done
  178  cat *txt
  179  awk -F : '{ print $4 }' /etc/passwd
  180  tail /etc/passwd
  181  awk -F : '/linda/ { print $4 }' /etc/passwd
  182  history
  183  ps aux
  184  ps aux | grep ssh
  185  kill -9 1305
  186  ps aux | grep ssh
  187  ps aux | grep ssh | grep -v grep
  188  sleep 30; ps aux | grep ssh | grep -v grep
  189  history
  190  systemctl cat sshd
  191  ps aux | tee psfile | grep ssh
  192  cat psfile
  193  history
  194  exit
  195  history
  196  ls -l .bash_history
  197  env
  198  env | grep HIST
  199  history
  200  history -d 199
  201  history
  202  env | grep HIST
  203  history
  204  rpm -qa | grep bash
  205  echo a > wirhiwrykubhwiurbuiwguigvhuiwguigbiuwuirbguirwgbiurwgiubgrwuigbiuwgrbiugwriugbuiwgruibgwrueigbieurgbiugwreiugbiwugbgiurw
  206  cat wirhiwrykubhwiurbuiwguigvhuiwguigbiuwuirbguirwgbiurwgiubgrwuigbiuwgrbiugwriugbuiwgruibgwrueigbieurgbiugwreiugbiwugbgiurw
  207  rm wirhiwrykubhwiurbuiwguigvhuiwguigbiuwuirbguirwgbiurwgiubgrwuigbiuwgrbiugwriugbuiwgruibgwrueigbieurgbiugwreiugbiwugbgiurw
  208  userinfo linda
  209  nmcli connection show
  210  nmcli connection show ens33
  211  apt install bash-completion
  212  yum install bash-completion
  213  countdown 12
  214  env
  215  MYVAR=hello
  216  echo $MYVAR
  217  shell
  218  bash
  219  echo $MYVAR
  220  export MYVAR=hello
  221  bash
  222  vim /etc/profile
  223  vim .bash_profile
  224  vim .bashrc
  225  sander
  226  source .bashrc
  227  sander
  228  sleep 3600
  229  jobs
  230  bg
  231  jobs
  232  sleep 1800 &
  233  jobs
  234  fg 1
  235  sleep 3600
  236  bg
  237  sleep 3600
  238  jobs
  239  bg
  240  top
  241  dd if=/dev/zero of=/dev/null &
  242  top
  243  ps -e -o pid,args --forest | less
  244  history -w
  245  history
  246  ls -l .bash_history
  247  env
  248  env | grep HIST
  249  history
  250  history -d 199
  251  history
  252  env | grep HIST
  253  history
  254  rpm -qa | grep bash
  255  echo a > wirhiwrykubhwiurbuiwguigvhuiwguigbiuwuirbguirwgbiurwgiubgrwuigbiuwgrbiugwriugbuiwgruibgwrueigbieurgbiugwreiugbiwugbgiurw
  256  cat wirhiwrykubhwiurbuiwguigvhuiwguigbiuwuirbguirwgbiurwgiubgrwuigbiuwgrbiugwriugbuiwgruibgwrueigbieurgbiugwreiugbiwugbgiurw
  257  rm wirhiwrykubhwiurbuiwguigvhuiwguigbiuwuirbguirwgbiurwgiubgrwuigbiuwgrbiugwriugbuiwgruibgwrueigbieurgbiugwreiugbiwugbgiurw
  258  userinfo linda
  259  nmcli connection show
  260  nmcli connection show ens33
  261  apt install bash-completion
  262  yum install bash-completion
  263  countdown 12
  264  env
  265  MYVAR=hello
  266  echo $MYVAR
  267  shell
  268  bash
  269  echo $MYVAR
  270  export MYVAR=hello
  271  bash
  272  vim /etc/profile
  273  vim .bash_profile
  274  vim .bashrc
  275  sander
  276  source .bashrc
  277  sander
  278  sleep 3600
  279  jobs
  280  bg
  281  jobs
  282  sleep 1800 &
  283  jobs
  284  fg 1
  285  sleep 3600
  286  bg
  287  sleep 3600
  288  jobs
  289  bg
  290  top
  291  dd if=/dev/zero of=/dev/null &
  292  top
  293  ps -e -o pid,args --forest | less
  294  history -w
  295  ps -e -o pid,args --forest | less
  296  kill 3169
  297  kill -9 3169
  298  dd if=/dev/sr0 of=cdrom.iso bs=1M &
  299  top
  300  ps aux | head
  301  DD
  302  cd /sys
  303  ls
  304  cd devices/
  305  ls
  306  cd cpu/
  307  ls
  308  cd ../..
  309  cd bus/
  310  ls
  311  cd cpu/
  312  ;s
  313  ls
  314  cd devices/
  315  ls
  316  pwd
  317  tree
  318  cd cpu1/
  319  ls
  320  cat online
  321  lscpu
  322  echo 0 > online
  323  lscpu
  324  pwd
  325  history | tail -5
  326  top
  327  cd
  328  dd if=/dev/zero of=/dev/null &
  329  top
  330  killall dd
  331  history
  332  countdown 12
  333  cd /etc/yum.repos.d/
  334  ls
  335  vim CentOS-Base.repo
  336  cd
  337  yum repolis
  338  yum repolist
  339  yum search nmap
  340  yum install nmap
  341  nmap -ns 192.168.4.0/24
  342  nmap -sn 192.168.4.0/24
  343  nmap 192.168.4.2
  344  nmap 192.168.4.157
  345  yum groups list
  346  yum groups install "Virtualization Host"
  347  systemctl status httpd
  348  cd /var/log
  349  ls -lrt
  350  systemctl status httpd
  351  history