expect usage in bash script or bash command in expect script

Question

I have a script below that works except for the expect portion:

#!/bin/bash # invdir=/home/john/inventory for file in $invdir/$1 do if [ -z $1 ] || [ -z $2 ] then echo "You must enter a value: prod, dev, dr, or test AND the password of the env you entered" exit 0 else for host in `cat $file` do ssh-copy-id -i ~/.ssh/id_rsa.pub $host <<-EOF expect "password:" send "$2\n" EOF done fi done 

I found an expect script that does most of what I need:

#!/usr/bin/expect -f spawn ssh-copy-id $argv expect "password:" send "your_password\n" expect eof to execute ./expect_script user@host1 

My problem is that I don't know enough of either bash or expect to get these two to work under one bash script or expect script.

Thank you in advance....

Answer 1

#!/bin/bash # invdir=/home/john/inventory for file in "$invdir"/"$1" do if [[ -z "$1" ]] || [[ -z "$2" ]] then echo "You must enter a value: prod, dev, dr, or test AND the password of the env you entered" exit 0 else while IFS= read -r host do export host export pw="$2" expect <<'EOF' spawn ssh-copy-id -i $env(HOME)/.ssh/id_rsa.pub $env(host) expect "password:" send "$env(pw)\n" expect eof EOF done < "$file" fi done 

Some notes:

• take care to quote your shell variables, especially positional params
• you need to launch the expect interpreter to run expect code
• pass shell variables to expect via the environment
• don't read the lines of a file with for
• I don't use <<-EOF because it's too easy to use non-tabs for the EOF word.
• but do use <<'EOF' to protect the expect variables