Mailing file contents though command line

You may know this but I feel it is bit useful as it provides a way to send important data in a file to your mailbox while working in a Linux server and you are so busy to copy and paste content in the mail body.

Command:

cat "file you required to send content" | /bin/mail -s "Subject" user@your.domain

Attach file in command line

Attache a file can be done in several ways;

I have used 'nail' command to attache a file and send to a user

Command is as fellows

cat "file you want to include as the body content" | nail -a -s "Subject" user@=usersdomain