bash scripting oct22

[root@localhost bash-scripting]# history
    1  dnf install git -y
    2  git clone https://github.com/sandervanvugt/bash-scripting
    3  cd bash-scripting/
    4  ls
    5  env
    6  echo $USER
    7  key=value
    8  echo $value
    9  echo $key
   10  export key=value
   11  bash
   12  vim /etc/bashrc
   13  echo ${key}
   14  echo ${key}1
   15  echo $key1
   16  ls
   17  echo $?
   18  ls ugiugiuguyguy
   19  echo $?
   20  echo $SHELL
   21  vim example1
   22  chmod +x example1
   23  ./example1
   24  vim /etc/bashrc
   25  example1
   26  echo $PATH
   27  ./example1
   28  vim hello-world.sh
   29  bash hello-world.sh
   30  hello-world.sh
   31  ./hello-world.sh
   32  ls -l hello-world.sh
   33  chmod +x hello-world.sh
   34  ./hello-world.sh
   35  hello-world.sh
   36  echo $PATH
   37  cp hello-world.sh /usr/bin/
   38  hello-world.sh
   39  type ls
   40  type man
   41  type cat
   42  type echo
   43  help
   44  man bash
   45  ls
   46  cat script2
   47  ./countdown 12
   48  cat countdown
   49  echo "this is my $SHELL"
   50  echo 'this is my $SHELL'
   51  echo this is my \$SHELL
   52  echo the value of $SHELL is $SHELL
   53  echo the value of \$SHELL is $SHELL
   54  ls
   55  vim readtit
   56  ./readtit
   57  chmod +x readtit
   58  ./readtit
   59  pwd
   60  echo hello >&2
   61  vim press.sh
   62  chmod +x press.sh
   63  ./press.sh
   64  cat press.sh
   65  vim colors.sh
   66  chmod +x colors.sh
   67  ./colors.sh
   68  vim variables
   69  vim colors.sh
   70  ./colors.sh
   71  vim colors.sh
   72* . colors.sh
   73  vim script2
   74  history
   75  . script2
   76  dnf install network-scripts
   77  cd
   78  cd bash-scripting/
   79  ls
   80  scp root@192.168.29.149:/etc/rc.d/init.d/network .
   81  vim network
   82  vim script3
   83  cat script3
   84  ./script3 a b c d e f g h i j k k l m n
   85  chmod +x script*
   86  ./script3 a b c d e f g h i j k k l m n
   87  cat script3
   88  vim script4
   89  ./script4 a b c d
   90  cat script4
   91  vim script4b
   92  chmod +x script4b
   93  ./script4b lisa linda lori
   94  cat script4b
   95  vim countdown
   96  echo $(( 2 + 5 ))
   97  echo $(( 2 * 5 ))
   98  vim countdown
   99  ./countdown 1
  100  vim countdown
  101  ./countdown 1
  102  date +%d-%m-%y
  103  today=$(date +%d-%m-%)
  104  echo %today
  105  echo $today
  106  today=$(date +%d-%m-%y)
  107  echo $today
  108  touch /tmp/backup-$(date +%d-%m-%y)
  109  uname -r
  110  cd /usr/lib/modules
  111  ls
  112  cd `uname -r`
  113  cd ..
  114  cd $(uname -r)
  115  cd ..
  116  cd
  117  cd bash-scripting/
  118  ./countdown 12
  119  vim countdown
  120  ./countdown 12
  121  dnf install vsftpd lftp
  122  systemctl start vsftpd
  123  lftp localhost
  124  vim /etc/vsftpd/vsftpd.conf
  125  setenforce 0
  126  systemctl restart vsftpd
  127  lftp localhost
  128  vim herescript
  129  chmod +x herescript
  130  ./herescript
  131  vim setupftp
  132  ./setupftp
  133  ls
  134  vim script6
  135  ./script6 /usr/bin/blah
  136  vim script6
  137  ./script6 /usr/bin/blah
  138  vim script7
  139  ./script7
  140  echo $(( 5 / 2 ))
  141  echo $(( 5 * 2 ))
  142  echo $(( 5 - 2 ))
  143  echo $(( 5 % 2 ))
  144  history
  145  type test
  146  man test
  147  history
  148  if [ -f /etc/hosts ]; then echo file exists; fi
  149  if [ -f /etc/hoguygfuyfg ]; then echo file exists; fi
  150  if true; then echo file exists; fi
  151  if false; then echo file exists; fi
  152  false
  153  echo $?
  154  true
  155  echo $?
  156  [ -f /etc/hosts ] && echo it exists
  157  [ -f /etc/hff ] && echo it exists
  158  [ -f /etc/hff ] || echo it not exists
  159  [ -f /etc/hosts ] || echo it not exists
  160  vim testscript
  161  chmod +x testscript
  162  ./testscript
  163  chmod +x testscript /etc
  164  chmod +x testscript /uguguiguigui
  165  bash -x testscript
  166  [ -x ]
  167  echo $?
  168  [ -x /etc ]
  169  echo $?
  170  [ -d /etc ]
  171  echo $?
  172  [ -d /ec ]
  173  echo $?
  174  vim testscript
  175  ./testscript
  176  ./testscript /etc
  177  ./testscript /guguguyfguy
  178  vim testscript
  179  mkdir /false
  180  chmod 444 /false
  181  ./testscript /false
  182  ls -ld /false
  183  man test
  184  [ -z $banana ] || echo no bananas
  185  [ -z $banana ] && echo no bananas
  186  ./countdown 12
  187  ls
  188  vim script10
  189  vim greater
  190  chmod +x greater
  191  ./greater
  192  vim greater
  193  ./greater
  194  vim greater
  195  vim else1
  196  vim else2
  197  vim numcheck
  198  ./numcheck
  199  vim numcheck
  200  strace -c ./numcheck
  201  vim numcheck
  202  strace -c ./numcheck
  203  time ls
  204  time echo *
  205  ls
  206  vim for
  207  grep for *
  208  vim lab6.sh
  209  for i in *sh; do echo $i has sh extension; done
  210  vim rename.sh
  211  chmod +x rename.sh
  212  ./rename.sh
  213  mkdir spaces
  214  touch one
  215  touch 'one two'
  216  touch three
  217  ls
  218  cd space
  219  cd spaces
  220  mv ../one* .
  221  mv ../three .
  222  for i in *; do echo $i; done
  223  for i in *; do echo mv $i $i.bak; done
  224  for i in *; do mv $i $i.bak; done
  225  ls
  226  touch one
  227  touch three
  228  rm *bak
  229  for i in *; do mv "$i" "$i.bak"; done
  230  ls
  231  grep case *
  232  cd ..
  233  grep case *
  234  vim script12
  235  ./script12
  236  vim network
  237  vim convert
  238  vim backout
  239  history