prompt - Bash confirm input or re enter -


i have simple bash script asks user if enter input. response y or n

if enter n script exits.

if enter y asked questions. @ end want ask them confirm input.

if it's correct we'll carry on, if not want return them questions re enter information.

so far i've got:

while true;     echo -e "enter details ? "     read yn     case $yn in         [nn]* ) exit;;         [yy]* )              echo -e "description"             read desc              echo -e "address"             read address          * ) echo "please answer yes or no.";;     esac done

this seems work fine, i've tried add confirmation.. thats not working.

while true;     echo -e "enter details ? "     read yn     case $yn in         [nn]* ) exit;;         [yy]* )              echo -e "description"             read desc              echo -e "address"             read address              echo -e "$desc - $address"              while true;                 echo -e "\nare these details correct ? "                 read conf                 case $conf in                     [nn]* ) // return enter details //                     [yy]* ) // carry on details entered // break;;                 esac             done           * ) echo "please answer yes or no.";;     esac done

the aim follows

the user selects y , enters description , address. page shows them summary of they've entered , asks them are these details correct ? if move on , script progresses. the input wrong script returns them enter description followed enter address.

can advise how this. thanks

you add 1 more loop level , use optional level indicator of break [n]:

while true;     echo -e "enter details ? "     read yn     case $yn in         [nn]*) exit;;         [yy]*)             while true;                 echo -e "description"                 read desc                  echo -e "address"                 read address                  echo -e "$desc - $address"                  while true;                     echo -e "\nare these details correct ? "                     read conf                     case $conf in                         [nn]* ) break 1;;                         [yy]* ) break 3;;                     esac                 done             done;;         *) echo "please answer yes or no.";;     esac done

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