Yes no

inquire ()  {
  echo  -n "$1 [y/n]? "
  read answer
  finish="-1"
  while [ "$finish" = '-1' ]
  do
    finish="1"
    if [ "$answer" = '' ];
    then
      answer=""
    else
      case $answer in
        y | Y | yes | YES ) answer="y";;
        n | N | no | NO ) answer="n";;
        *) finish="-1";
           echo -n 'Invalid response -- please reenter:';
           read answer;;
       esac
    fi
  done
}

... other stuff

inquire "Install now?"

...

Source: stackoverflow.com

Similar codes

2 votes301 views4 answers
Symbolic link
Shell/Bash
6 votes284 views2 answers
Nano add line numbers
Shell/Bash
4 votes285 views4 answers
Bash script
Shell/Bash
14 votes294 views1 answer
Remove angular cli
Shell/Bash
0 vote264 views1 answer
Linux "Error: Timeout was reached"
Shell/Bash
4 votes245 views1 answer
Bash ls to array
Shell/Bash
5 votes294 views4 answers
Git update branch from master
Shell/Bash
1 vote289 views1 answer
Javascript to exe
Shell/Bash
30 votes313 views6 answers
Sublime linux
Shell/Bash
0 vote266 views1 answer
Clamscan version command
Shell/Bash