problem to use quartus from Nios II SDK bash shell

If what I think you mean is correct and you are using "NIOS II shell" using the environment provided by altera, it seriously messes up your PATH. Do not use it, I think it is for windoze users (bash is a shell that comes default with linux). Just manually set you environment and then try it.

export QUARTUS_ROOTDIR=/opt/altera9.1/quartus

export PATH=$PATH:$QUARTUS_ROOTDIR/bin

export PATH=$PATH:$QUARTUS_ROOTDIR/../nios2eds/bin

......

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I would recommend learning about UNIX shells, and when it comes to linux, ease of use and installation would not get one anywhere, one needs to get his/her hands dirty.