CHMOD Calculator CHMOD Calculator

Chmod 6420

Chmod 6420 (chmod a+rwx,u-wx,g-rx,o-rwx,ug+s,+t,-t) sets permissions so that, (U)ser / owner can 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 6420 folder_name
OR use the symbolic CHMOD Command:

chmod -R a+rwx,u-wx,g-rx,o-rwx,ug+s,+t,-t folder_name

Chmod Permissions for chmod 6420

Chmod owner

  • Owner can 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 6420 looks in file listing

For files

After changing a file's mode to 6420 the file's mode will be displayed in Unix style file lsting as: -r-S-wS---

For folders

After changing a directory's mode to 6420 the folder's mode will be displayed in Unix style file lsting as: dr-S-wS---