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Chmod 2020

Chmod 2020 (chmod a+rwx,u-rwx,g-rx,o-rwx,ug+s,+t,u-s,-t) sets permissions so that, (U)ser / owner can't read, can't write and can't execute. (G)roup can't read, can write and can't execute. (O)thers can't read, can't write and can't execute.

Owner Rights (u) Group Rights (g) Others Rights (o)
Read (4)
Write (2)
Execute (1)
Extra chmod command options







Use the octal CHMOD Command:

chmod -R 2020 folder_name
OR use the symbolic CHMOD Command:

chmod -R a+rwx,u-rwx,g-rx,o-rwx,ug+s,+t,u-s,-t folder_name
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Chmod Permissions for chmod 2020

Chmod owner

  • Owner can't read
  • Owner can't write
  • Owner can't execute

Chmod group

  • Group can't read
  • Group can write
  • Group can't execute

Chmod other

  • Others can't read
  • Others can't write
  • Others can't execute

How chmod 2020 looks in file listing

For files

After changing a file's mode to 2020 the file's mode will be displayed in Unix style file lsting as: -----wS---

For folders

After changing a directory's mode to 2020 the folder's mode will be displayed in Unix style file lsting as: d----wS---