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Chmod 6555

Chmod 6555 (chmod a+rwx,u-w,g-w,o-w,ug+s,+t,-t) sets permissions so that, (U)ser / owner can read, can't write and can execute. (G)roup can read, can't write and can execute. (O)thers can read, can't write and can 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 6555 folder_name
OR use the symbolic CHMOD Command:

chmod -R a+rwx,u-w,g-w,o-w,ug+s,+t,-t folder_name
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Chmod Permissions for chmod 6555

Chmod owner

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

Chmod group

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

Chmod other

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

How chmod 6555 looks in file listing

For files

After changing a file's mode to 6555 the file's mode will be displayed in Unix style file lsting as: -r-sr-sr-x

For folders

After changing a directory's mode to 6555 the folder's mode will be displayed in Unix style file lsting as: dr-sr-sr-x