UNIX / Linux: Shell Scripting With mail Command

To use the mail command in a shell script, you can use the mail command followed by the options and arguments that you want to use.

Here is an example of a shell script that uses the mail command to send an email:

# Set the recipient and subject
recipient=user@example.com
subject="Hello from the shell"

# Set the body of the email
body="This is an email sent from the shell"

# Send the email
echo "$body" | mail -s "$subject" "$recipient"

This script sets the recipient, subject, and body of the email, and then sends the email using the mail command. The -s option specifies the subject of the email, and the echo "$body" command pipes the body of the email to the mail command.

You can use other options with the mail command to customize the email. For example, you can use the -a option to attach a file to the email, or the -c option to specify a carbon copy recipient.

Here is an example of a shell script that uses the mail command to send an email with an attachment:

# Set the recipient, subject, and attachment
recipient=user@example.com
subject="Hello from the shell"
attachment=/path/to/attachment.txt

# Set the body of the email
body="This is an email sent from the shell"

# Send the email with the attachment
echo "$body" | mail -s "$subject" -a "$attachment" "$recipient"

This script attaches the file /path/to/attachment.txt to the email, and sends it to the recipient user@example.com with the subject "Hello from the shell".

For more information about the mail command and its options, you can consult the mail man page by running the man mail command.

Keep in mind that the mail command is not available on all Unix and Linux systems, and it may have different options and behavior depending on the system and the mail server that you are using. You may need to use other commands or tools to send emails from a shell script, such as sendmail or a command-line email client.