我的centos怎么安装不了matlab

[root@localhost MATHWORKS_R2010A]# ./install
bash: ./install: /bin/sh: bad interpreter: 权限不够
[root@localhost MATHWORKS_R2010A]# sh install
-------------------------------------------------------------------

An error status was returned by the program 'xsetup',
the X Window System version of 'install'. The following
messages were written to standard error:

/media/MATHWORKS_R2010A/update/install/main.sh: line 86: /media/MATHWORKS_R2010A/update/bin/glnx86/xsetup: 权限不够

Attempt to fix the problem and try again. If X is not available
or 'xsetup' cannot be made to work then try the terminal
version of 'install' using the command:

install* -t or INSTALL* -t

-------------------------------------------------------------------

Sorry! Setup aborted . . .

[root@localhost MATHWORKS_R2010A]# sh install* -t


Welcome to the MATLAB Installer

---------------------------------------------------------------------------
| Please review the license agreement on the next set of screens. On any |
| screen the options to proceed are at the bottom. Type your response |
| at the prompt. |
---------------------------------------------------------------------------

The MathWorks, Inc. [screen 1 of 87]
-------------------
Software License Agreement


IMPORTANT NOTICE

READ THE TERMS AND CONDITIONS OF YOUR LICENSE AGREEMENT CAREFULLY BEFORE
COPYING, INSTALLING, OR USING THE PROGRAMS OR DOCUMENTATION.
----------------------------------------------------------------------------
>>>>>>>> For this License Agreement <<<<<<<<
Enter either: a r p ^C
To: [next screen] [accept] [reject] [print] [abort]
----------------------------------------------------------------------------
> a
/media/MATHWORKS_R2010A/update/install/main.sh: line 80: /media/MATHWORKS_R2010A/update/bin/glnx86/xsetup: 权限不够
[root@localhost MATHWORKS_R2010A]#

该怎么解决 ，谢谢