Bash

[Gokan Atmaca <linux.gokan@gmail.com>]

I want to conditionally output from the bash command. for example

telnet localhost 25
220 localhost.localdomain ESMTP Postfix

#! / bin / bash
COMMAND = `telnet localhost 25`
if ["$ COMMAND" == "220 localhost.localdomain ESMTP Postfix"]
echo "postfix ok"
else
echo "postfix error"