Matlab system command doesn't work properly on linux platform

When execute system('hostname -s') -command in matlab, process go to linux command line and in linux command line making exit command, process will go back to matlab command line with hostname.

Example run:

>> system('hostname -s')

[j...al@oulng208 users3/j...al]$exit

exit

oulng208

ans =

0

>>

Why matlab goes to linux command line? It should stay in matlab.

[Rik]

What do you mean? The purpose of the system function is to call the OS command line.

[Janne Karjalainen]

Yes, purpose is to get hostname from OS in matlab, somehow matlab is directing to linux command line.

Answer 1

[Rik]

If you want to capture the output to a Matlab variable, you should use the second output:

[status,response]=system('hostname -s');

I don't have Matlab installed on my Ubuntu VM, but this works in Octave, so it should do the trick.

Answer 2

[Walter Roberson]

https://www.gnu.org/software/bash/manual/html_node/Bash-Startup-Files.html

You have a BASH_ENV or equivalent for your shell, that is triggering interactive execution for the non-interactive case.

Hypothetically there could also be issues if you have SHELL environment variable set to include flags that should not be set for non-interactive work.

[Janne Karjalainen]

Issue was caused by shell environment change. Originally shell is tcsh and before staring matlab it is changed to bash. I fixed to tsch and now system commands are working in matlab. Thanks for comments!