FILES User Commands
The JANOS File System was modeled after Linux in order to maintain some
familiarity for some users. Also the Linux file permissions are handled
more logically than in other operating systems.
OWNERSHIP
Each file or directory has an Owner. This is the user account that created
the file or directory or 'root' if the system did so. The USERS command
lists the current users. The
CHOWN command can alter the assigned
ownership as well as the Group.
GROUPS
A file or directory may be assigned to a Group. A Group is a subset of the
user accounts that can be given specific access permissions for the file
or directory. The
GROUPS command lists he current Groups. The
CHGRP command
can alter the Group assignment. The 'root' Group includes all users and is
the default.
PERMISSIONS
File and directory permissions are displayed as a 10-character string in the
format:
drwxrwxrwx
'd' Is present for directories.
'r' Indicates that 'read' permission is granted.
'w' Indicates that 'write' permission is granted.
'x' Is set for executable files.
'-' Is displayed otherwise.
After the first character that describes the entry type there are 3 'rwx'
sets corresponding to permissions respectively for the Owner, Group and
then everyone else. The CHMOD command is used to alter file and folder
permissions.
NOTES
An Administrator has access to all files and directories regardless of
the defined permissions. Permission settings are then generally not
required unless the product is to be accessed by other types of users.
SEE ALSO
HELP Topics:
LS,
USERS,
GROUPS,
CHOWN,
CHGRP,
CHMOD
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