How to attach a file using mail command on Linux? [duplicate]

Answer 1

My answer needs base64 in addition to mail, but some uuencode versions can also do base64 with -m, or you can forget about mime and use the plain uuencode output...

   FROM=me@mydomain.com
   TO=someone@mydomain.com
   SUBJECT="Auto emailed"
   MIME="application/x-gzip"  # Adjust this to the proper mime-type of file
   FILE=somefile.tar.gz
   ENCODING=base64  
   boundary="---my-unlikely-text-for-mime-boundary---$$--" 

   (cat <