Convert PFX to PEM using expect

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#!/usr/bin/expect -f
set filename [lindex $argv 0];
set timeout -1
spawn openssl pkcs12 -in $filename -nocerts -out temp
expect "Enter Import Password:"
send -- "\n"
expect "Enter PEM pass phrase:"
send -- "D4ndyB0y$\n"
expect "Verifying - Enter PEM pass phrase:"
send -- "D4ndyB0y$\n"
expect eof
spawn openssl rsa -in  temp -out $filename-privatekey.pem
expect "Enter pass phrase for temp:"
send -- "D4ndyB0y$\n"
expect eof
spawn openssl pkcs12 -in $filename -clcerts -nokeys -out $filename-cert.pem
expect "Enter Import Password:"
send -- "\n"
expect eof
spawn openssl pkcs12 -in $filename -cacerts -nokeys -chain -out $filename-intermediate.pem
expect "Enter Import Password:"
send -- "\n"
expect eof