Using picocrypt CLI with bash/expect to automate some encryption

encrypt.exp

#!/usr/bin/expect -f

# This script encrypts a file using picocrypt
# Install picocrypt CLI and expect
# ./encrypt.exp 'YourPassword' yourFolderOrFiles

set password [lindex $argv 0]
set file [lindex $argv 1]

spawn picocrypt $file
expect {
   -re "Password:" {
        send "$password\r"
        exp_continue
    }
   -re "Confirm:" {
        send "$password\r"
    }
}
expect eof