CODEWITHSUNDEEP
linuxbashscripting
faceless
faceless

Reputation: 488

How to skip different prompts in BASH

I'm looking to a way to automate a script execution, which has 5 prompts: 4xYES and 1*NO. The prompts are constantly located on the same place:

yes | yes | yes | no | yes

Something like in the example below (based on 3 prompts):

#!/bin/bash

read -r -p "Ready to proceed? [yes/no]: " input

if [[ "$input" = "yes" ]]
 then
  read -r -p "Or maybe abort? [yes/no]: " answer
   if [[ "$answer" = "no" ]]
    then
     read -r -p "So... proceed? [yes/no]: " response
      if [[ "$response" = "yes" ]]
       then echo "NICE JOB!!!"
      fi
   fi
fi

Obviously, passing a single "yes" or "no" via the pipe to this script will no work, as the expected responses are different. Not aware whether there is a way to pass multiple params via the pipe.

I thought to create an array PROMPT=(yes no yes), and pass $i via the pipe to the script, but this will not work as well, and i do not need cyclic script execution for each $i.

Is there any way to pass different answers to the prompt, if their places are constant?

Upvotes: 1

Views: 2123

Answers (2)

Freddy
Freddy

Reputation: 4698

You could use printf and a pipe

printf '%s\n' yes yes yes no yes | ./script.sh

or input redirection and a process substitution

./script.sh < <(printf '%s\n' yes yes yes no yes)

or a here-string

./script.sh <<<$'yes\nyes\nyes\nno\nyes'

or a here-document

./script.sh <<'EOF'
yes
yes
yes
no
yes
EOF

Upvotes: 6

Enzo Caceres
Enzo Caceres

Reputation: 519

By 'simulating' a 'enter' with a new line

Something like:

echo "yes\nno\nyes" | bash myscript.sh

Pass your bash script

Upvotes: 0

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