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Chmod 4557

Chmod 4557 (chmod a+rwx,u-w,g-w,ug+s,+t,g-s,-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 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 4557 folder_name
OR use the symbolic CHMOD Command:

chmod -R a+rwx,u-w,g-w,ug+s,+t,g-s,-t folder_name
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Chmod Permissions for chmod 4557

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 write
  • Others can execute

How chmod 4557 looks in file listing

For files

After changing a file's mode to 4557 the file's mode will be displayed in Unix style file lsting as: -r-sr-xrwx

For folders

After changing a directory's mode to 4557 the folder's mode will be displayed in Unix style file lsting as: dr-sr-xrwx