ulimit command on 14.04

[Ralf Mardorf]

I don't know why you can't run

  ulimit -a

as user, but 

  sudo ulimit -a

can't work, because ulimit is part of the shell and not an external
program, but sudo executes a command and doesn't pass the command to
the invoked shell, OTOH

  su -c "ulimit -a"

works, assumed you've set up a root account, since it passes the COMMAND
to the invoked shell. If you'll use sudo, do it like this:

  sudo bash -c "ulimit -a"

  sudo dash -c "ulimit -a"

  sudo sh -c "ulimit -a"

  sudo -i
  ulimit -a

Regards,
Ralf