mail

The command operates on the user's mailbox if no argument is given. To send an email the message body is built from stdin. More information: https://manned.org/mail.

• Open an interactive prompt to check personal mail:

mail

• Send a typed email message with optional CC. The command-line below continues after pressing <Enter>. Input message text (can be multiline). Press <Ctrl>-D to complete the message text:

mail --subject="subject line" to_user@example.com --cc="cc_email_address"

• Send an email that contains file content:

mail --subject="$HOSTNAME filename.txt" to_user@example.com < path/to/filename.txt

• Send a tar.gz file as an attachment:

tar cvzf - path/to/directory1 path/to/directory2 | uuencode data.tar.gz | mail --subject="subject_line" to_user@example.com