how to use "sudo chmod 777 –R" for unlocking system files?

SINA.KHAYYAM · December 29, 2015, 05:18

Hi Foamers:
I want to implement a new scheme for time derivation(ddt scheme), so first of all i must unlock system files and compile them with my new scheme. To the knowledge of me, i should unlock the system files by writing the "sudo chmod 777 –R" command in terminal, but i don't know ho to do it exactly. Also i am afraid of messing up my system. Does anyone knows how to handle it with details?
Thanks in advance

wyldckat · December 29, 2015, 06:24

Quick answer: You don't need to modify directly the OpenFOAM source code. You can create a new library for your new time discretization scheme, as explained here: https://openfoamwiki.net/index.php/H...dary_condition
The idea is that you only need the "Make" folder and the class folder, then rename things and it's good to go.

Nonetheless, if you want to risk modifying the OpenFOAM source code directly, then I advise you to use chown instead of chmod, as explained here: http://www.cfd-online.com/Forums/ope...tml#post315755 - post #2

SINA.KHAYYAM · December 29, 2015, 09:41

Thank you for your advice.
Best regards!

December 29, 2015, 05:18	how to use "sudo chmod 777 –R" for unlocking system files?	#1
SINA.KHAYYAM New Member SINA.KHAYYAM Join Date: Dec 2015 Posts: 7 Rep Power: 10	Hi Foamers: I want to implement a new scheme for time derivation(ddt scheme), so first of all i must unlock system files and compile them with my new scheme. To the knowledge of me, i should unlock the system files by writing the "sudo chmod 777 –R" command in terminal, but i don't know ho to do it exactly. Also i am afraid of messing up my system. Does anyone knows how to handle it with details? Thanks in advance

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December 29, 2015, 06:24		#2
wyldckat Retired Super Moderator Bruno Santos Join Date: Mar 2009 Location: Lisbon, Portugal Posts: 10,982 Blog Entries: 45 Rep Power: 128	Quick answer: You don't need to modify directly the OpenFOAM source code. You can create a new library for your new time discretization scheme, as explained here: https://openfoamwiki.net/index.php/H...dary_condition The idea is that you only need the "Make" folder and the class folder, then rename things and it's good to go. Nonetheless, if you want to risk modifying the OpenFOAM source code directly, then I advise you to use chown instead of chmod, as explained here: http://www.cfd-online.com/Forums/ope...tml#post315755 - post #2

December 29, 2015, 09:41		#3
SINA.KHAYYAM New Member SINA.KHAYYAM Join Date: Dec 2015 Posts: 7 Rep Power: 10	Thank you for your advice. Best regards!