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https://github.com/bigbeartechworld/big-bear-scripts.git
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222e6af258
This commit refactors all the shell scripts to use `#!/usr/bin/env bash` instead of `#!/bin/bash`. This change ensures that the scripts will run with the system's default Bash interpreter, even if it is not located at the standard `/bin/bash` path.
57 lines
2.2 KiB
Bash
57 lines
2.2 KiB
Bash
#!/usr/bin/env bash
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# This script sends an email using the telnet command.
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# The email details can be provided interactively or default values will be used.
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# Set default values for the SMTP server details and email content.
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DEFAULT_SMTP_SERVER="smtp.server.com"
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DEFAULT_SMTP_PORT="1025"
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DEFAULT_SENDER="sender@example.com"
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DEFAULT_RECIPIENT="recipient@example.com"
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DEFAULT_SUBJECT="Default HTML Email"
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DEFAULT_MESSAGE="<html><body><h1>Hello, World!</h1><p>This is a default test message in <strong>HTML</strong>.</p></body></html>"
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# Prompt the user to enter the SMTP server details and email content.
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# If the user doesn't provide any input, default values will be used.
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read -p "Enter SMTP Server [$DEFAULT_SMTP_SERVER]: " SMTP_SERVER
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SMTP_SERVER="${SMTP_SERVER:-$DEFAULT_SMTP_SERVER}"
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read -p "Enter SMTP Port [$DEFAULT_SMTP_PORT]: " SMTP_PORT
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SMTP_PORT="${SMTP_PORT:-$DEFAULT_SMTP_PORT}"
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read -p "Enter Sender Email [$DEFAULT_SENDER]: " SENDER
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SENDER="${SENDER:-$DEFAULT_SENDER}"
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read -p "Enter Recipient Email [$DEFAULT_RECIPIENT]: " RECIPIENT
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RECIPIENT="${RECIPIENT:-$DEFAULT_RECIPIENT}"
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read -p "Enter Email Subject [$DEFAULT_SUBJECT]: " SUBJECT
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SUBJECT="${SUBJECT:-$DEFAULT_SUBJECT}"
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read -p "Enter Message Body (HTML) [$DEFAULT_MESSAGE]: " MESSAGE
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MESSAGE="${MESSAGE:-$DEFAULT_MESSAGE}"
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# Send the email using the telnet command.
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# This section creates a sequence of SMTP commands to be piped into the telnet command.
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# Each command is followed by a sleep to ensure that the SMTP server has time to process it.
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{
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sleep 2
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echo "EHLO localhost" # Start the SMTP handshake.
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sleep 2
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echo "MAIL FROM:<$SENDER>" # Specify the sender.
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sleep 2
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echo "RCPT TO:<$RECIPIENT>" # Specify the recipient.
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sleep 2
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echo "DATA" # Start the data section of the email.
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sleep 2
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echo "Subject: $SUBJECT" # Add the subject.
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echo "Content-Type: text/html; charset=utf-8" # Specify that the email content is HTML.
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echo "" # Empty line to separate headers from the body.
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echo "$MESSAGE" # Add the email body.
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echo "." # End the data section.
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sleep 2
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echo "QUIT" # Quit the SMTP session.
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} | telnet $SMTP_SERVER $SMTP_PORT # Pipe the SMTP commands into the telnet command.
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