linfun may23 day2

[student@localhost ~]$ history
    1  cat /etc/os-release
    2  exit
    3  ./countdown 12
    4  pwd
    5  sudo -i
    6  history
    7  sudo -i
    8  useradd bob
    9  sudo useradd bob
   10  echo $SHELL
   11  sudo useradd linda
   12  echo $?
   13  ls
   14  ls -l
   15  ls -l Videos/
   16  ls kjghkughi
   17  echo $?
   18  echo $
   19  echo $?
   20  echo hello
   21  ls /root
   22  sudo ls /root
   23  id
   24  vimtutor
   25  history
   26  vim countdown
   27  cat countdown
   28  countdown
   29  ./countdown
   30  ls -l countdown
   31  chmod +x countdown
   32  ./countdown
   33  ./countdown 12
   34  history
   35  cat countdown
   36  ssh 192.168.29.181
   37  cat /etc/os-release
   38  ps aux | grep ssh
   39  systemctl status sshd
   40  sudo dnf install openssh
   41  ip a
   42  history
   43  LS
   44  ls
   45  ls -l
   46  ls -a
   47  ls -al
   48  ls --help
   49  ls --help | less
   50  cp --help
   51  man ls
   52  ls -lrt
   53  whoami
   54  hostname
   55  date
   56  ip a
   57  history
   58  uname
   59  uname -a
   60  man uname
   61  timedatectl --help
   62  timedatectl set-time 16:55
   63  cat /etc/passwd
   64  passwd linda
   65  sudo passwd linda
   66  su - linda
   67  touch newfile
   68  ls -l
   69  cd /
   70  touch aaa
   71  pwd
   72  ls
   73  cd
   74  ls -l newfile
   75  touch newfile
   76  ls -l newfile
   77  cd Documents/
   78  pwd
   79  cd ..
   80  pwd
   81  last
   82  history
   83  man man
   84  man passwd
   85  man lvcreate
   86  man -k partition
   87  man -k user
   88  man -k user | wc
   89  man -k user
   90  man -k user | grep 8
   91  man -k sander
   92  man man
   93  man apropos
   94  man mandb
   95  mandb
   96  echo $?
   97  sudo mandb
   98  man ls
   99  pinfo '(coreutils) ls invocation'
  100  man cp
  101  history
  102  cd /etc
  103  cat passwd
  104  lsblk
  105  ls -l /dev/sda
  106  cd
  107  ls -l /etc/
  108  ls -ld /etc/
  109  cd /etc
  110  ls -lrt
  111  ls
  112  ls a*
  113  ls -d a*
  114  ls -d a?a*
  115  ls -d a?[a-c]*
  116  cd
  117  cd Documents/
  118  cd ..
  119  mkdir newDir
  120  rmdir newDir/
  121  mkdir newDir
  122  touch newDir/hello
  123  rmdir newDir/
  124  rm -r newDir/
  125  rm -rf newDir/
  126  cd /
  127  ls
  128  man hier
  129  ls /afs
  130  cd /usr
  131  ls
  132  cd /etc
  133  ls
  134  cd /var
  135  ls
  136  ls log/
  137  ls -l log/
  138  less /var/log/messages
  139  sudo less /var/log/messages
  140  cd /home
  141  ls
  142  history
  143  ls
  144  cd
  145  pwd
  146  cd /tmp
  147  ls
  148  touch hhh
  149  cd /usr
  150  touch hhh
  151  ls
  152  ls local/
  153  cd
  154  echo $PATH
  155  cp countdown /usr/local/bin/
  156  sudo cp countdown /usr/local/bin/
  157  history
  158  sudo poweroff
  159  ls /
  160  ls -l
  161  cd /
  162  ls -l
  163  cd /var/log
  164  ls
  165  cd cups
  166  pwd
  167  ls ../..
  168  ls /var
  169  ls
  170  cp access_log ../../../home/student/
  171  ls -l
  172  sudo cp access_log ../../../home/student/
  173  ls /home/student/ -l
  174  xs
  175  cd
  176  mkdir /tmp/files/; cp -a .* /tmp/
  177  pwd
  178  ls -a
  179  cp --help | less
  180  ls --help | less
  181  cp --help | less
  182  mkdir /tmp/files/; cp -a .* /tmp/ 2> /dev/null
  183  history
  184  ls -l
  185  echo hello >> access_log
  186  ln countdown myscript
  187  ls -l
  188  ln countdown myscript2
  189  ls -l
  190  ls -li
  191  tree
  192  cd Documents/
  193  mkdir one two three
  194  touch one/file
  195  cd ..
  196  tree
  197  cd /
  198  tree
  199  cp --help | less
  200  sudo yum install tree
  201  sudo apt install tree
  202  cat /etc/os-release
  203  cd
  204  ls
  205  mv newfile /tmp
  206  mv access_log /
  207  sudo yum search tree
  208  ln -s countdown another
  209  ls -l
  210  ln countdown whatever
  211  rm another
  212  ls -l
  213  ln -s whatever newfile
  214  ls -l
  215  rm whatever
  216  ls -l
  217  cat newfile
  218  lsblk
  219  ls -l /boot
  220  sudo ln /boot/vmlinuz-5.14.0-160.el9.x86_64 kernel
  221  cd /
  222  sudo find / -name "hosts"
  223  sudo find / -name "*hosts*"
  224  sudo find / -user linda
  225  sudo find / -size +250M
  226  sudo mkdir /root/linda; sudo find / -user linda -exec cp {} /root/linda/ \;
  227  find / -name linda 2>/dev/null | wc -l
  228  find / -name "*host*" 2>/dev/null | wc -l
  229  cd
  230  sudo tar -cvf etc.tar /etc
  231  ls -l
  232  sudo tar -czvf etc.tar.gz /etc
  233  ls -l
  234  sudo tar -cjvf etc.tar.gz /etc
  235  sudo tar -cjvf etc.tar.bz2 /etc
  236  sudo tar -czvf etc.tar.gz /etc
  237  sudo tar -cJvf etc.tar.xz /etc
  238  ls -l etc*
  239  sudo time tar -cJvf etc.tar.xz /etc
  240  sudo time tar -czvf etc.tar.gz /etc
  241  history
  242  tar -tvf etc.tar.gz | less
  243  tar -xvf etc.tar.gz
  244  ls
  245  tar -xvf etc.tar.gz -C /tmp
  246  ls -l /tmp
  247  history
  248  sudo find / -user linda
  249  sudo find / -user linda 2>/dev/null
  250  sudo find / -user linda 2>/dev/null | wc -l
  251  mkdir /tmp/files/pictures /tmp/files/photos /tmp/files/videos
  252  mkdir /tmp/sanderfiles/something
  253  mkdir -p /tmp/sanderfiles/something
  254  cp /etc/[a-c]* /tmp/files
  255  cd /tmp/files/
  256  ls
  257  mv [ab]* photos/
  258  mv c* videos/
  259  tree
  260  cd /etc
  261  man find
  262  find . -size -1000c
  263  find . -size -1000c -exec cp {} /tmp/files/pictures/
  264  find . -size -1000c -exec cp {} /tmp/files/pictures/ \;
  265  cd -
  266  tree
  267  find . -name "*which*"
  268  history
  269  pwd
  270  ln -s /var/ .
  271  ls
  272  ls -k
  273  ls -l
  274  cd ..
  275  mkdir archive
  276  cd archive/
  277  sudo tar -czvf homes.tar.gz /home
  278  ls -l
  279  tar -xf homes.tar.gz
  280  ls
  281  tree
  282  tree -L 2
  283  tree -L 3
  284  history
  285  vimtutor
  286  nano hello
  287  less /etc/passwd
  288  head /etc/passwd
  289  head -5 /etc/passwd
  290  tail -5 /etc/passwd
  291  head -5 /etc/passwd | tail -1
  292  cd
  293  vim myfile
  294  ls -l myfile
  295  cat myfile
  296  tac myfile
  297  sleep 10
  298  ps aux | grep ssh
  299  ps aux | grep ssh | grep -v grep
  300  ps aux | grep ssh | grep -vi grep
  301  sudo grep AllowRoot /etc/ssh/sshd_config
  302  sudo grep -i Allow /etc/ssh/sshd_config
  303  sudo grep -i -B 5 Allow /etc/ssh/sshd_config
  304  sudo grep -i -A 5 Allow /etc/ssh/sshd_config
  305  sudo grep -i -C 5 Allow /etc/ssh/sshd_config
  306  sudo grep -lR /etc/* linda
  307  sudo grep -lR linda /etc/*
  308  sudo grep -R linda /etc/*
  309  sleep 10
  310  grep 'a*' a*
  311  sudo grep 'a*' a*
  312  man 7 regex
  313  vim example
  314  grep 'a*' example
  315  grep 'a' example
  316  grep '^a' example
  317  grep 'a$' example
  318  grep '!a$' example
  319  grep 'anna\b' example
  320  grep 'a*a' example
  321  grep 'a' example
  322  grep 'a+a' example
  323  grep -E 'a+a' example
  324  echo aaaaa > example
  325  grep -E 'a+a' example
  326  echo annaa > example
  327  grep -E 'a+a' example
  328  grep -E 'a+.*a' example
  329  grep -E 'an?a' example
  330  grep -E 'bo\{3\}ot' example
  331  grep -E 'bo\{3\}t' example
  332  grep -E 'bo\{4\}t' example
  333  cat example
  334  history
  335  echo hello >> example
  336  vim example
  337  grep -E 'bo\{3\}t' example
  338  history
  339  grep -E 'b\{3\}o' example
  340  grep -E 'b\{3\}o.*' example
  341  grep 'b\{3\}o.*' example
  342  grep 'b\{3\}ot' example
  343  grep 'bo\{3\}t' example
  344  grep '^root' /etc/*
  345  ls
  346  ls > outfile
  347  who > outfile
  348  cat outfile
  349  ls >> outfile
  350  cat outfile
  351  grep -R root /proc
  352  grep -R root /etc
  353  grep -R root /etc 2> /dev/null
  354  grep -R root /etc 2> errors.txt
  355  less errors.txt
  356  ps aux | tee psfile | grep ssh
  357  cat psfile
  358  history
  359  ls -l .bash_history
  360  wc -l .bash_history
  361  history -w
  362  wc -l .bash_history
  363  history
  364  history -d 363
  365  history
  366  cat example
  367  sudo find / -user linda 2>/dev/null | wc -l
  368  man rootsh
  369  sudo dnf provides */rootsh
  370  cat /etc/os-release
  371  sudo dnf whatprovides */rootsh
  372  touch kjgiugiuguyfguyfuyfufgubkklhkfdytdyuguihlihugyufytdytdtyfugihiohguiftydtdytfuyfgiugiugfuyfdytdtrdytf
  373  ls
  374  rm kjgiugiuguyfguyfuyfufgubkklhkfdytdyuguihlihugyufytdytdtyfugihiohguiftydtdytfuyfgiugiugfuyfdytdtrdytf
  375  echo $HISTSIZE
  376  ip addr show
  377  sudo dnf install bash-completion
  378  alias dnf=zypper
  379  dnf search zypper
  380  unalias dnf
  381  dnf search zypper
  382  env
  383  env | wc -l
  384  env | grep -i hist
  385  env
  386  echo $PATH
  387  cat /etc/redhat-release
  388  echo $USER
  389  export color=red
  390  echo $color
  391  sudo vim /etc/bashrc
  392  ls /etc/profile.d/
  393  sudo vim /etc/profile.d/alias.sh
  394  source /etc/profile.d/alias.sh
  395  sander
  396  sander ls
  397  find / -name "sander"
  398  sudo find / -name "sander" 2> /dev/null
  399  hello
  400  sleep inifity
  401  sleep infinity
  402  history
  403  systemctl status sshd
  404  ps aux | less
  405  sleep 3600
  406  bg
  407  sleep 3700 &
  408  jobs
  409  fg
  410  ps aux | grep 3600
  411  kill 9094
  412  ps aux
  413  kill 3014
  414  ls --help
  415  ./countdown 12
  416  cat countdown
  417  vim countdown
  418  ./countdown 1
  419  vim countdown
  420  sudo dd if=/dev/zero of=/dev/null &
  421  sudo -i
  422  sudo usermod -aG wheel linda
  423  id linda
  424  ls -l
  425  cd /tmp
  426  ls -l
  427  chown anna:wheel countdown
  428  sudo chown anna:wheel countdown
  429  id anna
  430  sudo chown linda:wheel countdown
  431  ls -l countdown
  432  chmod 730 countdown
  433  sudo chmod 730 countdown
  434  ls -l countdown
  435  ip a
  436  ip route show
  437  ping nu.nl
  438  cat /etc/resolv.conf
  439  systemctl status NetworkManager
  440  lsblk
  441  sudo mount /dev/sda1 /mnt
  442  cd /mnt
  443  ls
  444  cd
  445  sudo umount /mnt
  446  journalctl
  447  journalctl -u sshd
  448  systemctl status sshd
  449  journalctl --dmesg
  450  dmesg
  451  history