Instead of "sendmail", a call to the uri mailto: would be better, and it would make the command work on live cd. mailto:<email address hidden>?attachment=/tmp/myfile.txt&attachment=/tmp/myotherfile.txt
Instead of "sendmail", a call to the uri mailto: would be better, and it would ?attachment= /tmp/myfile. txt&attachment= /tmp/myotherfil e.txt
make the command work on live cd.
mailto:<email address hidden>