chflags flags access lists mac os x

Pour gérer les flags (attrib) sur mac os x utiliser la commande : chflags

Attention pour certaines options il faut être root

Par exemple pour autoriser le changement de owner :

chflags nouchg filename

Pour voir les flags d'un fichier : ls -lO

DESCRIPTION

   The chflags utility modifies the file flags of the listed files as speci-

   fied by the flags operand.

   The options are as follows:

   -H If the -R option is specified, symbolic links on the command line

   are followed. (Symbolic links encountered in the tree traversal

   are not followed.)

   -L If the -R option is specified, all symbolic links are followed.

   -P If the -R option is specified, no symbolic links are followed.

   This is the default.

   -R Change the file flags for the file hierarchies rooted in the

   files instead of just the files themselves.

   The flags are specified as an octal number or a comma separated list of

   keywords. The following keywords are currently defined:

   arch, archived

   set the archived flag (super-user only)

   opaque set the opaque flag (owner or super-user only). [Directory

   is opaque when viewed through a union mount]

   nodump set the nodump flag (owner or super-user only)

   sappnd, sappend

   set the system append-only flag (super-user only)

   schg, schange, simmutable

   set the system immutable flag (super-user only)

   uappnd, uappend

   set the user append-only flag (owner or super-user only)

   uchg, uchange, uimmutable

   set the user immutable flag (owner or super-user only)

   hidden set the hidden flag [Hide item from GUI]

   As discussed in chflags(2), the sappnd and schg flags may only be unset   when the system is in single-user mode.
   Putting the letters ``no'' before or removing the letters ``no'' from a   keyword causes the flag to be cleared. For example:
   nouchg clear the user immutable flag (owner or super-user only)   dump clear the nodump flag (owner or super-user only)
   Unless the -H or -L options are given, chflags on a symbolic link always   succeeds and has no effect. The -H, -L and -P options are ignored unless   the -R option is specified. In addition, these options override each   other and the command's actions are determined by the last one specified.
   You can use "ls -lO" to see the flags of existing files.
EXIT STATUS   The chflags utility exits 0 on success, and >0 if an error occurs.
SEE ALSO   ls(1), chflags(2), stat(2), fts(3), symlink(7)
HISTORY   The chflags command first appeared in 4.4BSD.
BUGS   Only a limited number of utilities are chflags aware. Some of these   tools include ls(1), cp(1), find(1), install(1), dump(8), and restore(8).   In particular a tool which is not currently chflags aware is the pax(1)   utility.