184  echo "${a[3]}"
  185  echo "${a[@]}"
  186  vim skript.sh 
  187  ./skript.sh 
  188  echo $nonexistant
  189  ./skript.sh ab cd
  190  cat ./skript.sh 
  191  var="$(ls | head -n 1)"
  192  echo $var
  193  var="`ls | head -n 1`"
  194  echo $var
  195  read inpvar
  196  echo $inpvar
  197  echo $inpvar | tr a-z A-Z
  198  read inpvar; echo $inpvar | tr a-z A-Z
  199  read input; echo $input | wc -m
  200  read input; echo $input | wc -c
  201  echo x${input}y
  202  echo -n x${input}y
  203  var=abc; case $var in a) echo 1;; ab) echo 2;; abc) echo 3;; *) echo 4;; esac
  204  var=abc; case $var in a) echo 1;; ab) echo 2;; abc) echo 3; ls;; *) echo 4;; esac
  205  var=a; case $var in a) echo 1;; ab) echo 2;; abc) echo 3; ls;; *) echo 4;; esac
  206  var=xyz; case $var in a) echo 1;; ab) echo 2;; abc) echo 3; ls;; *) echo 4;; esac
  207  grep root /etc/passwd
  208  echo $?
  209  grep rot /etc/passwd
  210  echo $?
  211  grep rot /etc/passw
  212  echo $?
  213  test a = a
  214  test a = a; echo $?
  215  test abc = abc; echo $?
  216  test abc = abd; echo $?
  217  test abc = "$var"; echo $?
  218  echo $var
  219  test abc != "$var"; echo $?
  220  test -n "$var"; echo $?
  221  test -z "$var"; echo $?
  222  test -e /etc/passwd; echo $?
  223  test -e /etc/passw; echo $?
  224  man test
  225  [ -e /etc/passwd ]; echo $?
  226  [ abc = def ]; echo $?
  227  [ abc != def ]; echo $?
  228  ls -l /usr/bin/[
  229  [abc != def]; echo $?
  230  if [ abc != def ]; then ls; echo lol; done
  231  if [ abc != def ]; then ls; echo lol; fi
  232  if [ abc = def ]; then ls; echo lol; fi
  233  for i in 1 2 3; do echo $i; done
  234  seq 1 10
  235  for i in $(seq 1 10); do echo number $i; done
  236  for i in "${a[@]}"; do echo number $i; done
  237  for i in "$(seq 1 10)"; do echo number $i; done
  238  if [ "50" = " 50" ]; then echo equals; fi
  239  if [ "50" -eq " 50" ]; then echo equals; fi
  240  if [ "40" -lt " 50" ]; then echo equals; fi
  241  if [ "60" -lt " 50" ]; then echo equals; fi
  242  if [ "60" -ge " 50" ]; then echo equals; fi
  243  if [ "60" -ge " 50" ]; then echo equals; fi
  244  expr 2 + 2
  245  expr 2 \* 2
  246  echo $((2+2))
  247  echo $((2 + 2*2 - 1))
  248  b=12
  249  echo $((2 + 2*2 - $b))
  250  read input; echo $input | wc -c
  251  read input; echo $(( $(echo $input | wc -c) - 1))
  252  cat "$(ls | head -n 1)"
  253  cat $(ls | head -n 1)
  254  top
  255  mv /tmp/results.phtml /tmp/results.html 
  256  clear
  257  ls *.txt
  258  ls -l *.txt
  259  ls -l ?.txt
  260  ls -l [ax]*.txt
  261  ls -l /bin/l*
  262  o /bin/l*
  263  a=(a b c)
  264  echo "${a[2]}"
  265  a=(/bin/l*)
  266  echo "${a[2]}"
  267  var=abc; case $var in a) echo 1;; ab) echo 2;; abc) echo 3;; *) echo 4;; esac
  268  var=a; case $var in a) echo 1;; ab) echo 2;; abc) echo 3;; *) echo 4;; esac
  269  var=xyz; case $var in a) echo 1;; ab) echo 2;; abc) echo 3;; *) echo 4;; esac
  270  var=xyz; case $var in a) echo 1;; ab) echo 2;; abc) echo 3;; *) echo 4; ls;; esac
  271  grep root /etc/passwd; echo $?
  272  grep rot /etc/passwd; echo $?
  273  grep rot /etc/passw; echo $?
  274  test abc = abc; echo $?
  275  test abc = adc; echo $?
  276  test abc != adc; echo $?
  277  var=abc; test $var != adc; echo $?
  278  var=abc; test "$var" != adc; echo $?
  279  var=; test "$var" != adc; echo $?
  280  var=; test $var != adc; echo $?
  281  test -e /etc/passwd; echo $?
  282  test -e /etc/passw; echo $?
  283  test 10 -eq 50; echo $?
  284  test 10 -eq 10; echo $?
  285  test 10 -eq " 10 "; echo $?
  286  test 10 = " 10 "; echo $?
  287  test 10 -ne " 10 "; echo $?
  288  test 10 -lt " 10 "; echo $?
  289  man test
  290  test -n "$var"; echo $?
  291  test -z\ "$var"; echo $?
  292  test -z "$var"; echo $?
  293  var=neprazdny; test -z "$var"; echo $?
  294  var=neprazdny; [ -z "$var" ]; echo $?
  295  [ 10 -lt 50 ]; echo $?
  296  ls -l /usr/bin/[
  297  [10 -lt 50]; echo $?
  298  if [ -e /etc/passwd ]; then echo hura; done
  299  if [ -e /etc/passwd ]; then echo hura; fi
  300  if [ -e /etc/psswd ]; then echo hura; fi
  301  for i in 1 2 3 a b c; do echo polozka $i; done
  302  for i in "${a[@]}"; do echo polozka $i; done
  303  for i in *.txt; do echo polozka $i; done
  304  seq 1 10
  305  for i in $(seq 1 10); do echo polozka $i; done
  306  for i in "$(seq 1 10)"; do echo polozka $i; done
  307  for i in $(seq 1 10); do echo polozka $i; done
  308  expr 2 + 2
  309  expr 2 * 2
  310  echo expr 2 * 2
  311  expr 2 \* 2
  312  echo $((2 + 2))
  313  var=10
  314  echo $((2 + $var))
  315  var=$(($var * 2))
  316  echo $var
  317  cat /etc/hosts
  318  getent passwd
  319  getent passwd | tail
  320  getent passwd | tail | cut -c 5-10
  321  getent passwd | tail | cut -f 3,5 -d :
  322  cat /etc/passwd
  323  getent passwd | tail | cut -f 3,5 -d :
  324  grep '#' /etc/passwd | wc -l
  325  grep '#' /etc/hosts | wc -l
  326  grep '#' /etc/hosts
  327  grep # /etc/hosts
  328  grep '#' /etc/hosts | wc
  329  grep '#' /etc/hosts | awk '{print$2}'
  330  grep '#' /etc/hosts | wc | awk '{print$2}'
  331  grep '#' /etc/hosts | wc
  332  grep '#' /etc/hosts | wc | awk '{print$2}'
  333  ps axu
  334  ps axu | awk '{print$2}'
  335  ps axu | awk '{print$1}'
  336  ps axu | awk '{print$3}'
  337  getent passwd | tail 
  338  getent passwd | cut -f 5 -d :
  339  getent passwd | cut -f 5 -d : | awk '{print$1}'
  340  getent passwd | cut -f 5 -d : | cut -f 1 -d ' '
  341  read prom
  342  echo $prom
  343  read prom; echo $prom
  344  read a; echo "$a" | wc | awk '{print$3}'
  345  read a; echo "$a" | wc -m
  346  echo $a
  347  echo -n $a
  348  read a; echo -n "$a" | wc -m
  349  read a; echo $(( $(echo "$a" | wc -m) - 1))
  350  help exit
  351  echo $RANDOM
  352  echo $RANDOM
  353  echo $RANDOM
  354  echo $RANDOM
  355  echo $RANDOM
  356  echo $RANDOM
  357  echo $RANDOM
  358  echo $RANDOM
  359  echo $RANDOM
  360  echo $RANDOM
  361  echo $RANDOM
  362  echo $RANDOM
  363  echo $RANDOM
  364  echo $RANDOM
  365  echo $RANDOM
  366  echo $RANDOM
  367  echo $RANDOM
  368  echo $RANDOM
  369  echo $RANDOM
  370  echo $RANDOM
  371  echo $RANDOM
  372  echo $RANDOM
  373  echo $RANDOM
  374  echo $RANDOM
  375  echo $RANDOM
  376  echo $RANDOM
  377  echo $RANDOM
  378  echo $RANDOM
  379  echo $RANDOM
  380  echo $RANDOM
  381  echo $RANDOM
  382  echo $RANDOM
  383  echo $RANDOM
  384  echo $RANDOM
  385  echo $RANDOM
  386  echo $RANDOM
  387  echo $RANDOM
  388  echo $RANDOM
  389  echo $RANDOM
  390  echo $RANDOM
  391  echo $RANDOM
  392  echo $RANDOM
  393  echo $RANDOM
  394  echo $RANDOM
  395  echo $RANDOM
  396  echo $RANDOM
  397  echo $RANDOM
  398  echo $RANDOM
  399  echo $RANDOM
  400  echo $RANDOM
  401  echo $RANDOM
  402  echo $RANDOM
  403  echo $RANDOM
  404  echo $RANDOM
  405  echo $RANDOM
  406  echo $RANDOM
  407  echo $RANDOM
  408  echo $RANDOM
  409  echo $RANDOM
  410  echo $RANDOM
  411  echo $RANDOM
  412  echo $RANDOM
  413  echo $RANDOM
  414  echo $RANDOM
  415  echo $RANDOM
  416  echo $RANDOM
  417  echo $RANDOM
  418  echo $RANDOM
  419  echo $RANDOM
  420  echo $RANDOM
  421  echo $RANDOM
  422  echo $RANDOM
  423  echo $RANDOM
  424  echo $RANDOM
  425  echo $RANDOM
  426  echo $RANDOM
  427  echo $RANDOM
  428  echo $RANDOM
  429  echo $RANDOM
  430  echo $RANDOM
  431  echo $RANDOM
  432  echo $RANDOM
  433  echo $RANDOM
  434  echo $RANDOM
  435  echo $RANDOM
  436  echo $RANDOM
  437  echo $RANDOM
  438  echo $RANDOM\
  439  echo $RANDOM\
  440  echo $RANDOMecho $RANDOM
  441  echo $RANDOM
  442  echo $RANDOM
  443  echo $RANDOM
  444  echo $RANDOM
  445  echo $RANDOM
  446  echo $RANDOM
  447  echo $RANDOM
  448  echo $RANDOM
  449  echo $RANDOM
  450  echo $RANDOM
  451  echo $RANDOM
  452  echo $RANDOM
  453  echo $RANDOM
  454  echo $RANDOM
  455  echo $RANDOM
  456  echo $RANDOM
  457  echo $RANDOM
  458  echo $RANDOM
  459  echo $RANDOM
  460  echo $RANDOM
  461  echo $RANDOM
  462  echo $RANDOM
  463  echo $RANDOM
  464  echo $RANDOM
  465  echo $RANDOM
  466  echo $RANDOM
  467  echo $RANDOM
  468  echo $RANDOM
  469  echo $RANDOM
  470  echo $RANDOM
  471  echo $RANDOM
  472  echo $RANDOM
  473  echo $RANDOM
  474  echo $RANDOM
  475  echo $RANDOM
  476  echo $RANDOM
  477  echo $RANDOM
  478  echo $(( $RANDOM % 100 ))
  479  echo $(( $RANDOM % 100 ))
  480  echo $(( $RANDOM % 100 ))
  481  echo $(( $RANDOM % 100 ))
  482  echo $(( $RANDOM % 100 ))
  483  echo $(( $RANDOM % 100 ))
  484  echo $(( $RANDOM % 100 ))
  485  echo $(( $RANDOM % 100 ))
  486  echo $(( $RANDOM % 100 ))
  487  echo $(( $RANDOM % 100 ))
  488  echo $(( $RANDOM % 100 ))
  489  echo $(( $RANDOM % 100 ))
  490  echo $(( $RANDOM % 100 ))
  491  echo $(( $RANDOM % 100 ))
  492  echo $(( $RANDOM % 100 ))
  493  echo $(( $RANDOM % 100 ))
  494  echo $(( $RANDOM % 100 ))
  495  echo $(( $RANDOM % 100 ))
  496  read a; if (test "$a" -gt 10) then echo pochvala; fi
  497  read a; if (test "$a" -gt 10) then echo pochvala; fi
  498  read a; if test "$a" -gt 10; then echo pochvala; fi
  499  read a; if [ "$a" -gt 10 ]; then echo pochvala; fi
  500  read a; if [ "$a" -gt 10 ]; then echo pochvala; fi
  501  getent passwd
  502  getent passwd | sort
  503  getent passwd
  504  getent passwd | sort -t: -k3
  505  getent passwd | sort -t: -k3 -n
  506  getent passwd | sort -t: -k3 -n | less
  507  getent passwd | sort -t: -k3 -n | less
  508  getent passwd | cut -d: -f7
  509  getent passwd | cut -d: -f7 | uniq
  510  getent passwd | cut -d: -f7 | sort | uniq
  511  getent passwd | cut -d: -f7 | sort | uniq -c
  512  ssh k333stu1.felk.cvut.cz
  513  getent passwd | cut -d: -f5 | cut --delimiter=" " -f2 | sort | uniq -c | sort -n -r | head -n10
  514  getent passwd #| cut -d: -f5 | cut --delimiter=" " -f2 | sort | uniq -c | sort -n -r | head -n10
  515  getent passwd | cut -d: -f5 #| cut --delimiter=" " -f2 | sort | uniq -c | sort -n -r | head -n10
  516  getent passwd | cut -d: -f5 | cut --delimiter=" " -f2 #| sort | uniq -c | sort -n -r | head -n10
  517  getent passwd | cut -d: -f5 | cut -d" " -f2 #| sort | uniq -c | sort -n -r | head -n10
  518  getent passwd | cut -d: -f5 | cut -d" " -f2 | sort | uniq -c #| sort -n -r | head -n10
  519  getent passwd | cut -d: -f5 | cut -d" " -f2 | sort | uniq -c | sort -n -r #| head -n10
  520  getent passwd | cut -d: -f5 | cut -d" " -f2 | sort | uniq -c | sort -n -r | head -n10
  521  getent passwd | less
  522  getent passwd | cut -d: -f5 | cut -d" " -f1 | sort | uniq -c | sort -n -r | head -n10
  523  ls -l
  524  vi y.txt 
  525  cp y.txt y-modified.txt
  526  vim y-modified.txt
  527  diff y.txt y-modified.txt
  528  diff -u y.txt y-modified.txt
  529  find
  530  find /tmp
  531  find . -name '*.txt'
  532  echo *
  533  echo *.txt
  534  echo /bin/l*
  535  echo /bin/l*s
  536  echo /bin/l?
  537  echo /bin/less*
  538  echo /bin/less[kf]*
  539  ls -l /bin/l*s
  540  for i in /bin/l*s; do echo $i; done
  541  find . -name '*.txt'
  542  echo *.txt
  543  find . -name *.txt
  544  find . -name *.txt
  545  echo find . -name *.txt
  546  echo find . -name "*.txt"
  547  find . -name "*.txt"
  548  man find 
  549  stat ls.txt 
  550  stat --help ls.txt 
  551  stat -c %s ls.txt 
  552  getent passwd | cut -d: -f5 | cut -d" " -f1 | sort | uniq -c # | sort -n -r | head -n10
  553  var1=abc
  554  var2=abc
  555  [ "$var1" = "$var2" ]; echo $?
  556  var2=ab
  557  [ "$var1" = "$var2" ]; echo $?
  558  echo "${#var1}"
  559  var1=abcdefg
  560  echo "${#var1}"
  561  echo "${var1:0:3}"
  562  echo "${var1:1:3}"
  563  echo "${var1#*d}"
  564  var1=abcdefgabcdefg
  565  echo "${var1#*d}"
  566  echo "${var1#*de}"
  567  echo "${var1##*d}"
  568  echo "${var1%e*}"
  569  echo "$var1"
  570  echo "${var1%e*}"
  571  echo "${var1%%e*}"
  572  ls -l
  573  filename=y-modified.txt
  574  echo "${filename%.txt}.sh"
  575  echo "${filename%.txt}"
  576  echo "${filename%.*}"
  577  echo "${filename%.*}.sh"
  578  mv $filename "${filename%.*}.sh"
  579  ls -l
  580  echo $filename
  581  echo ${filename/d/x}
  582  echo ${filename//d/x}
  583  echo ${filename//d?/__}
  584  test "$var1" = "$var2"; echo $?
  585  test "$var1" = "$var2" || echo cool
  586  test "$var1" = "$var2" && echo cool
  587  test "$var1" = "$var1" && echo cool
  588  test "$var1" = "$var1" || echo cool
  589  echo this should succeed || echo ERROR
  590  if [ "$var1" != "$var2" ] && -e /etc/passwd; then echo cool; fi
  591  if [ "$var1" != "$var2" ] && [ -e /etc/passwd ]; then echo cool; fi
  592  if [ "$var1" != "$var2" ] && [ -e /etc/passw ]; then echo cool; fi
  593  if [ "$var1" != "$var2" ] || [ -e /etc/passw ]; then echo cool; fi
  594  jobs
  595  man man
  596  jobs
  597  man ls &
  598  jobs
  599  fg
  600  fg
  601  [ -e /etc/passwd ] || { echo a; echo b; }
  602  [ -e /etc/paswd ] || { echo a; echo b; }
  603  [ -e /etc/paswd ] || (echo a; echo b)
  604  [ -e /etc/paswd ] || (cd /tmp; echo a; echo b)
  605  [ -e /etc/paswd ] || { cd /tmp; echo a; echo b; }
  606  cd -
  607  [ -e /etc/paswd ] || { x=1; echo a; echo b; }; echo $x
  608  [ -e /etc/paswd ] || (y=1; echo a; echo b); echo $y
  609  [ -e /etc/paswd ] || { cd /tmp; echo a; echo b };  }
  610  [ -e /etc/paswd ] || { cd /tmp; echo a; echo b; }
  611  x='ls *'
  612  echo $x
  613  $x
  614  clear
  615  fun() { echo this is a function; ls; }
  616  fun
  617  fun() { echo this is a function $1; ls $2; }
  618  fun
  619  fun abc
  620  fun abc /tmp
  621  cd -
  622  cd ~
  623  fun abc /tmp
  624  fun abc 
  625  fun() { abc=1; echo this is a function $1; ls $2; }
  626  echo $abc
  627  fun
  628  echo $abc
  629  fun() { local abc; abc=1; echo this is a function $1; ls $2; }
  630  fun() { local abc; abc=2; echo this is a function $1; ls $2; }
  631  echo $abc
  632  fun
  633  echo $abc
  634  fun() { local abc; abc=2; echo this is a function $1; ls $2; return 0; }
  635  fun; echo $?
  636  fun() { local abc; abc=2; echo this is a function $1; ls $2; return 1; }
  637  fun; echo $?
  638  if fun; then echo ok; fi
  639  if ! fun; then echo ok; fi
  640  vi skript.sh 
  641  ./skript.sh 
  642  cat skript.sh 
  643  jobs
  644  fg
  645  vi design1.sh
  646  vi design2.sh
  647  clear
  648  echo Hello | grep ell
  649  echo Hello | grep el*
  650  echo Hello | grep ^el*
  651  echo Hello | grep ^Hel*
  652  echo Hello | grep ^Hel*o
  653  echo Hello | grep '^Hel*o$'
  654  echo Hellox | grep '^Hel*o$'
  655  echo Hellox | grep '^Hel*o'
  656  echo Hellllllllo | grep '^Hel*o$'
  657  echo Helo | grep '^Hel*o$'
  658  echo Heo | grep '^Hel*o$'
  659  echo Heo | grep '^[Hh]el*o$'
  660  echo heo | grep '^[Hh]el*o$'
  661  echo Heo | grep '^Hel.*o$'
  662  echo Helo | grep '^Hel.*o$'
  663  echo Helasdfjkhfqwero | grep '^Hel.*o$'
  664  echo Helasdfjkhfqwero | grep '.'
  665  echo  | grep '.'
  666  echo ab | grep '.'
  667  echo a | grep '.'
  668  echo  | grep '.'
  669  echo abc | grep '^.*@.*$'
  670  echo abc@xyz | grep '^.*@.*$'
  671  echo abc@xyz | grep '^.*@.*\..*$'
  672  echo abc@xyz.cz | grep '^.*@.*\..*$'
  673  echo abc@xyz.abccz | grep '^.*@.*\..*$'
  674  echo abc@xyz.cz | grep '^.*@.*\..*$'
  675  getent passwd | cut -d: -f5
  676  getent passwd | cut -d: -f5 | head
  677  getent passwd | cut -d: -f5 | less
  678  getent passwd | cut -d: -f5 | grep '^[A-Z][a-z]* [A-Z].*' | less
  679  getent passwd | cut -d: -f5 | grep '^[A-Z][a-z]* [A-Z].*[a-z]$' | less
  680  getent passwd | cut -d: -f5 | grep '^[A-Z][a-z]* [A-Z].*[a-z]$' | less
  681  getent passwd | cut -d: -f5 | grep '^[A-Z][a-z]* [A-Z].*[a-z]$' | grep -v Manager | less
  682  getent passwd | cut -d: -f5 | grep -v '^[A-Z][a-z]* [A-Z].*[a-z]$' 
  683  history >history-`date +%F`.txt