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I have a folder in a cluster that I want to secure by allowing access to me only (read, write and execute). I am new in using clusters, what are the command lines I can use?

I have used umask u=rwx,g=,o=, but once I logout, the permissions change. With chmod the permissions didn't change.

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  • The term "cluster" is extremely vague. What cluster do you mean? Also, I strongly doubt that a directory's permissions change when you log out. Finally, it seems you have already found a solution, namely chmod. What is your problem?
    – berndbausch
    Commented Jun 26, 2021 at 12:02
  • a cluster is a machine in a server in which I am doing calculations. With umask I changed the permissions of my folder but once I logout the permissions was changed to the initial state. With chmod nothing has changed
    – user1447888
    Commented Jun 26, 2021 at 13:16
  • "A machine in a server" doesn't make sense to me, but it doesn't seem to be relevant. With umask, you can't change permissions of existing folders. You change the initial permissions of new files and folders. Again, since chmod does set your folder's permissions, what is your problem?
    – berndbausch
    Commented Jun 26, 2021 at 14:45
  • chmod is not changing the permissions, I mean chmod is not working
    – user1447888
    Commented Jun 26, 2021 at 15:14
  • If chmod can't change the directory's permissions, you may not have permission to change permissions, or the directory resides on a filesystem that doesn't have the permission concept such as FAT.
    – berndbausch
    Commented Jun 26, 2021 at 16:51

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