linfun day2 nov21

VIM MINI TUTORIAL

(see also slides)

kherkghiughi

HELLO world
HELLO moon
HELLO planet venus

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read vimtutor

DO NOT USE vi CHEATSHEETS!!!!

[student@rocky ~]$ history
    1  ls
    2  vi countdown
    3  chmod +x countdown
    4  cat countdown
    5  echo $PATH
    6  pwd
    7  cp countdown /usr/local/bin/
    8  whoami
    9  sudo cp countdown /usr/local/bin/
   10  countdown 1
   11  history
   12  countdown 0
   13  history
   14  echo $PATH
   15  sudo reboot
   16  history
   17  ##### ON GRUB PROMPT: add "systemd.unit=multi-user.target"
   18  history
   19  clear
   20  sudo systemctl start graphical.target
   21  history
   22  history
   23  sudo -i
   24  id
   25  id linda
   26  sudo usermod -aG wheel linda
   27  id linda
   28  su - linda
   29  history
   30  id
   31  cat /etc/groups
   32  cat /etc/group
   33  exit
   34  ls
   35  exit
   36  sudo apt install openssh-server
   37  sudo systemctl status sshd
   38  history
   39  sudo systemctl status sshd
   40  ip a
   41  countdown 12
   42  uname --help
   43  uname --all
   44  uname -a
   45  ls -h
   46  ls --help
   47  ls --help | less
   48  ls -lrt
   49  netstat -tulpen
   50  ps aux
   51  ps -aux
   52  whoami
   53  WHOAMI
   54  whoami --help
   55  hostname
   56  hostname --help
   57  hostname -i
   58  hostname -a
   59  date
   60  date --help | less
   61  date +%m-%d-%y
   62  date +%d-%m-%y
   63  date +%d-%m-%Y
   64  date +%d-%M-%Y
   65  uanem
   66  uname
   67  uname -a
   68  uname -r
   69  passwd --help | less
   70  passwd -S linda
   71  sudo passwd -S linda
   72  touch hello
   73  ls -l
   74  cd /
   75  touch hello
   76  cd tmp
   77  touch hello
   78  cd
   79  pwd
   80  date
   81  ls -l hello
   82  touch hello
   83  ls -l hello
   84  last
   85  w
   86  who
   87  w
   88  history
   89  passwd --help | less
   90  last
   91  which last
   92  sudo rm /usr/bin/last
   93  sudo dnf provides */finger
   94  which last
   95  sudo rm -f /usr/bin/last
   96  last
   97  man man
   98  man last
   99  man find
  100  man man
  101  ls -l /etc/passwd
  102  which passwd
  103  man passwd
  104  man 5 passwd
  105  man -a passwd
  106  man -k user
  107  man man
  108  man apropos
  109  man mandb
  110  sudo mandb
  111  man -k user
  112  man -k user | wc
  113  man -k user | grep 8
  114  man -k user | grep 8 | wc
  115  man ls
  116  info ls
  117  pinfo ls
  118  cd /usr/share/doc
  119  ls
  120  cd grep
  121  ls
  122  ls -l
  123  less NEWS
  124  cd ..
  125  cd pam
  126  ls
  127  less Linux-PAM_SAG.txt
  128  cd
  129  countdown 12
  130  ls
  131  ls -a
  132  ls -l
  133  ls -lrt
  134  pwd
  135  cd /etc
  136  ls a*
  137  ls -d a*
  138  ls -d a?.*
  139  ls -d a[uv]*
  140  ls -d a[u-z]*
  141  cd
  142  pwd
  143  cd /etc
  144  cd
  145  mkdir hellodir
  146  ls
  147  ls -l
  148  rmdir hellodir/
  149  cd /usr
  150  ls
  151  du -sh
  152  cd /etc
  153  ls
  154  less DIR_COLORS
  155  cd /var
  156  ls
  157  cd log
  158  ls -l
  159  ls -lrt
  160  cd
  161  journalctl
  162  history
  163  du -hs
  164  cd /var
  165  di -hs
  166  du -hs
  167  sudo du -hs 2>/dev/null
  168  #sudo rm -rf / --no-preserve-root
  169  cd
  170  man hier
  171  ssh [email protected] man hier
  172  ssh [email protected] "man hier"
  173  ssh [email protected] man hier | less
  174  ssh [email protected] "man hier | less"
  175  ssh [email protected] man hier | less
  176  sudo ifconfig
  177  man ifconfig
  178  ip a
  179  sudo ip a
  180  sudo ip addr add dev ens160 10.0.0.10/24
  181  ip a
  182  ping 10.0.0.10
  183  sudo ifconfig
  184  sudo ifconfig -a
  185  sudo ldd /usr/sbin/ifconfig
  186  sudo ldd /usr/sbin/ip
  187  which ifconfig
  188  sudo rm -f $(which ifconfig)
  189  sudo tail /var/log/messages
  190  cd /var
  191  sudo tail log/messages
  192  cd cache/
  193  pwd
  194  cd /usr/share/doc/
  195  tail ../../../var/log/messages
  196  tail /var/log/messages
  197  cd
  198  sudo cp -R /tmp/ .
  199  ls
  200  sudo cp -R /tmp .
  201  ls
  202  mv hello bye
  203  ls -l
  204  history
  205  sudo touch mydonut
  206  echo with sprinkles please > mydonut
  207  cat mydonut
  208  ls -il mydonut
  209  ln mydonut yourdonut
  210  ls -il *donut
  211  ln mydonut herdonut
  212  ls -il *donut
  213  rm yourdonut
  214  ls -il *donut
  215  ln -s mydonut whatever
  216  ln -s mydonut hisdonut
  217  mv whatever whateverdonut
  218  ls -il *donut
  219  cat hisdonut
  220  echo im not interested >> whateverdonut
  221  ls -il *donut
  222  rm mydonut
  223  ls -il *donut
  224  cat hisdonut
  225  ln herdonut mydonut
  226  ls -il *donut
  227  history
  228  ls -l /
  229  sudo lsblk
  230  sudo /boot
  231  sudo ls /boot
  232  sudo ln /etc/hosts /boot/hosts
  233  find / -name "hosts"
  234  sudo find / -name "hosts"
  235  sudo find / -name "hosts*"
  236  sudo find / -user "linda"
  237  sudo find / -user "linda" 2> /dev/null
  238  sudo find / -size +2G
  239  ls -l /proc/kcore
  240  sudo mkdir /root/linda; sudo find / -user linda -exec cp {} /root/linda/ \;
  241  ps aux
  242  ps aux | less
  243  history
  244  man locate
  245  locate hosts
  246  sudo updatedb
  247  locate hosts
  248  sudo tar -cvf backup.tar /etc /home
  249  ls -l
  250  ls -lh
  251  sudo tar -czvf backup.tar.gz /etc /home
  252  man tar
  253  sudo tar -czvf backup.tar.gz /etc /home --exclude=/home/backup*
  254  sudo tar -czvf backup.tar.gz --exclude=/home/student/backup* /etc /home
  255  sudo tar -cjvf backup.tar.bz2 --exclude=/home/student/backup* /etc /home
  256  sudo tar -cJvf backup.tar.xz --exclude=/home/student/backup* /etc /home
  257  ls -l
  258  ls -lh
  259  tar tvf backup.tar.gz
  260  tar xvf backup.tar.xz
  261  ls
  262  tar xvf backup.tar.xz -C /tmp
  263  ls /tmp
  264  countdown 20
  265  mkdir -p /tmp/files/pictures /tmp/files/photos /tmp/files/videos
  266  cd /tmp/files
  267  ls
  268  cp /etc/[a-c]* .
  269  ls
  270  mv [ab]* photos/
  271  ls
  272  ls photos/
  273  mv c* videos/
  274  #sudo find /etc -size
  275  man find
  276  sudo find /etc -size -1000c
  277  sudo find /etc -size -1000c -exec cp {} pictures/
  278  sudo find /etc -size -1000c -exec cp {} pictures/ \;
  279  sudo find /etc -type f -size -1000c -exec cp {} pictures/ \;
  280  ls pictures/
  281  pwd
  282  ln -s /var var
  283  ls
  284  sudo tar czvf homes.tar /home
  285  ls -l
  286  mkdir /tmp/archive
  287  tar xvf homes.tar -C /tmp/archive
  288  ls /tmp/archive/
  289  tree /tmp/archive/
  290  sudo nano /etc/hosts
  291  cat /etc/hosts
  292  vimtutor
  293  pwd
  294  cd
  295  vim vimschool.txt
  296  history
  297  sudo less /var/log/messages
  298  sudo more /var/log/messages
  299  sudo head /etc/passwd
  300  sudo head -5 /etc/passwd
  301  sudo tail -5 /etc/passwd
  302  sudo head -5 /etc/passwd | tail -1
  303  cat /etc/hosts
  304  tac /etc/hosts
  305  sudo dnf provides */cowsay
  306  sudo grep lisa /etc/*
  307  sudo grep lisa /etc/* 2>/dev/null
  308  ps aux | grep ssh
  309  ps aux | grep -i ssh
  310  ps aux | grep -i sshd
  311  ps aux | grep -i sshd | grep -v grep
  312  sudo dnf install httpd -y
  313  sudo grep DocumentRoot /etc/httpd/conf/httpd.conf
  314  sudo grep -A 10 DocumentRoot /etc/httpd/conf/httpd.conf
  315  sudo grep -l root /etc/*
  316  sudo grep -lR root /etc/* 2>/dev/null
  317  sudo grep -lR linda /etc/* 2>/dev/null
  318  sudo grep lisa /etc/* 2>/dev/null
  319  vim regexfun
  320  grep 'anna' regexfun
  321  grep '^anna' regexfun
  322  grep 'anna$' regexfun
  323  grep '^anna$' regexfun
  324  grep '^anna\b' regexfun
  325  grep '^anna' regexfun
  326  grep 'b.t' regexfun
  327  grep 'b.*t' regexfun
  328  grep 'b.+t' regexfun
  329  grep -E 'b.+t' regexfun
  330  grep -E 'b.?t' regexfun
  331  grep 'bo\{2}\t'
  332  grep 'bo\{2}\t' regexfun
  333  grep 'bo\{2\}t' regexfun
  334  cat regexfun
  335  history
  336  cat regexfun
  337  grep '^anna ' regexfun
  338  vim regexfun
  339  grep '^anna ' regexfun
  340  grep '^anna\b' regexfun
  341  grep 'anna\b' regexfun
  342  cat /etc/passwd
  343  cut -f 1 /etc/passwd
  344  cut -f 1 -d : /etc/passwd
  345  cut -f 4 -d : /etc/passwd
  346  cut -f 5 -d : /etc/passwd
  347  cut -f 1 -d : /etc/passwd | sort
  348  cut -f 3 -d : /etc/passwd | sort
  349  cut -f 3 -d : /etc/passwd | sort -n
  350  echo hello
  351  echo hello | tr
  352  echo hello | tr :lower: :upper:
  353  echo hello | tr [:lower:] [:upper:]
  354  echo hello | tr [a-z] [A-Z]
  355  echo hello | tr [a-k] [l-z]
  356  sed -n 5p /etc/passwd
  357  for i in one two three; do mkdir $i; done
  358  ls
  359  for i in one two three; do echo hello > $i/hellofile; done
  360  cat one/hellofile
  361  sed -i 's/anna/linda/g' regexfun
  362  cat regexfun
  363  for i in one two three; do sed -i -e 's/hello/bye/' $i/hellofile; done
  364  cat one/hellofile
  365  #for i in "*scenario*"; do sed -i -e 's/feyenoord/noway/' $i/intro.md; done
  366  awk -F : '{ print $4 }' /etc/passwd
  367  awk -F : '/linda/ { print $4 }' /etc/passwd
  368  awk -F : '$3 > 999 { print $1 }' /etc/passwd
  369  history
  370  pinfo sed
  371  ls > myfile
  372  cat myfile
  373  who > myfile
  374  cat myfile
  375  ls >> myfile
  376  cat myfile
  377  ls > /dev/null
  378  lsblk
  379  ls > /dev/sda
  380  grep -R root /proc
  381  grep -R root /proc 2>/dev/null
  382  grep -R root /etc &> myfile
  383  less myfile
  384  ps aux | tee psfile | grep ssh
  385  cat psfile
  386  history
  387  vim .bash_history
  388  countdown 14
  389  exit
  390  wc .bash_history
  391  history
  392  history -d 388
  393  history
  394  echo $HISTFILE
  395  echo $HISTFILESIZE
  396  echo $HISTSIZE
  397  export HISTSIZE=10000
  398  export HISTFILESIZE=10000
  399  countdown 12
  400  sudo -i
  401  env
  402  env | grep HIST
  403  alias sander="help"
  404  sander
  405  alias
  406  sudo vim /etc/profile
  407  ls /etc/profile.d/
  408  sudo vim /etc/profile.d/bighist.sh
  409  vim .bash_profile
  410  vim .bashrc
  411  vim .bash_logout
  412  ls -al
  413  ls
  414  tar -czvf student.tgz --exclude=backup* .
  415  tar -cz --exclude=backup* .
  416  sleep 10
  417  sleep 3600
  418  bg
  419  ps aux | grep 3600
  420  sleep 1800 &
  421  jobs
  422  fg 1
  423  sudo dd if=/dev/zero of=/dev/null &
  424  sudo jobs
  425  dd if=/dev/zero of=/dev/null &
  426  sudo jobs
  427  dd if=/dev/zero of=/dev/null &
  428  sudo top
  429  killall dd
  430  ls -l
  431  pwd
  432  ls -ld .
  433  rm -f back*
  434  systemctl status crond
  435  sudo crontab -e
  436  sudo journalctl
  437  sudo lsblk
  438  sudo umount /dev/sdb1
  439  sudo mount /dev/sdb1 /mnt
  440  cd /mnt
  441  ls
  442  ls -l
  443  touch dummyfile
  444  sudo touch dummyfile
  445  ls
  446  sudo umount /dev/sdb1
  447  lsof /mnt
  448  cd
  449  sudo umount /dev/sdb1
  450  ls /mnt
  451  history