UNIX for Advanced & Expert Users

Hi,
I have been asked to automate the package installation through shell script.
I have 10 packages to be installed and in that 4 packages requires additional DB information(Host Name, Credentials etc) to be passed and for remaining 6 packages i need to provide the "Yes" - "No" .
I have tried with expect , admin file but as per my understanding both requires standard input/steps to defined. Can i use expect with If loop after spawning the command
say f or ex : Spawn pkgadd "Test.pkg"
if (expect [Host Name])
then
send "HOST NAME"
Is it possible to validate the outcome of the command and input the option through shell script? Please Clarify. or Do we have any other approach to perform this?

Thanks,
Muhil

posted in 2 forums

Have a look at this code snippet from one of my scripts doing automating SFTP:

/usr/bin/expect <<EOF
spawn /usr/bin/sftp USERNAME@SERVER_IP
expect {
"Password: " {
send "PASSWORD\r"
}
"Are you sure you want to continue connecting (yes/no)? " {
send "yes\n"
expect "Password: "
send "PASSWORD\r"
}
}
expect "sftp> "
send "cd $IMEIS \r"
expect "sftp> "
send "lcd $LOCALDIR \r"
expect "sftp> "
send "get $file \r"
expect "sftp> "
send "bye \r"
EOF


You should be able to change it to your like.