error message "install_unix: not found"

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HyunChul Youn
HyunChul Youn 2015-2-8
评论： Glib 2023-11-1
ubuntu 14.04, matlab 2014b
I am having troble installing matlab I aleady had solved my first installing problem "permission denied" (by using command "chmod -x") second, when I entered command "./install"
"./install: 1: eval: /home/mycom/batang/matlab/R2014b/bin/glnx86/install_unix: not found"
....
I do not understand this message. What should I do in order to complete the installation?
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Utkarsh
Utkarsh 2016-3-10
编辑：Walter Roberson 2016-3-10
same issue..
Trying to install Matlab 2015b on Ubuntu 14.04.
./install: 1:eval:/media/user/MATHWORKS_R2015B/bin/glnx86/install_unix: not found
Weiying Qiu
Weiying Qiu 2016-6-3
Same issue. Cannot find install_unix on Linuxmint.

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回答（4 个）

Randy A Lemons
Randy A Lemons 2017-7-25
编辑：Randy A Lemons 2017-7-25
Should anyone have this issue in the future, for me it was caused by using the wrong extraction method on the .zip file. I have 7zip installed on my 64bit machine and using the command:
7z e matlab_R2017a_glnxa64.zip
caused the file to extract but apparently not in the right way. The MATLAB directions at https://www.mathworks.com/help/install/ug/install-mathworks-software.html specifically call for you to use:
unzip matlab_R2017a_glnxa64.zip
which then allows the install to continue properly.
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David Alejandro Celaya González
David Alejandro Celaya González 2021-3-9
it worked, the error was caused for the wrong extraction. Tks.

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Walter Roberson
Walter Roberson 2016-6-3
You are trying to install onto a 32 bit Linux system. 32 bit Linux has not been supported for the last several releases.
Sean Ma
Sean Ma 2018-1-31
编辑：Sean Ma 2018-1-31
So I've encountered the same issue with you all for installing Matlab on CentOS 6 server. I made sure that I'm on `root` (with `sudo -i`) as well as all the folders/file have `write` access (with `chmod +x`) but I'm still getting all these errors.
After further investigation, Matlab's `install` script seems to make a copy of the essential installation files to `/tmp` and initiate the installation from there. Now someone mentioned in another forum ( https://www.centos.org/forums/viewtopic.php?t=22300 ) that possibly the `/tmp` folder which Matlab is installing has a `noexec` option when mounted where it doesn't let you execute any binary for security concerns.
You can check it with the `mount` command and it should display something like below with the `noexec` option at the `/tmp` line.
/dev/mapper/lv_tmp on /tmp type ext4 (rw,noexec)
To overcome that, you can temporarily disable it by
mount -o remount,exec /tmp
and retry your install. But be sure to enable it back later:
mount -o remount,noexec /tmp
I've learned this from here: https://www.linuxquestions.org/questions/linux-general-1/remove-noexec-from-tmp-directory-769763/ and it did the trick for me!
Hope it helps you as well!
Markos Loizou
Markos Loizou 2017-3-23
I had the same problem, and my system is 64 bits, you have to use sudo ./install since some of the folders and files the installation process is trying to access and modify need root privileges.
You can check your system version by uname -a or uname -i, if you get i386 then its 32 bits if x86_64 then it's a 64 bit. I hope this helps

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