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Chmod 4050

Chmod 4050 (chmod a+rwx,u-rwx,g-w,o-rwx,ug+s,+t,g-s,-t) sets permissions so that, (U)ser / owner can't read, can't write and can't execute. (G)roup can read, can't write and can 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 4050 folder_name
OR use the symbolic CHMOD Command:

chmod -R a+rwx,u-rwx,g-w,o-rwx,ug+s,+t,g-s,-t folder_name
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Chmod Permissions for chmod 4050

Chmod owner

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

Chmod group

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

Chmod other

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

How chmod 4050 looks in file listing

For files

After changing a file's mode to 4050 the file's mode will be displayed in Unix style file lsting as: ---Sr-x---

For folders

After changing a directory's mode to 4050 the folder's mode will be displayed in Unix style file lsting as: d--Sr-x---