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jeudi 16 juin 2011

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.

vendredi 10 juin 2011

activer mode hibernation mise en veille prolongée windows vista

Pour activer la mise en veille prolongée windows vista/seven

powercfg -h on

Mac OS X recover lost password

To reset your OS X password without an OS X CD you need to enter terminal and create a new admin account:

1. Reboot
2. Hold apple + s down after you hear the chime.
3. When you get text prompt enter in these terminal commands to create a brand new admin account :

  • mount -uw /
  • rm /var/db/.AppleSetupDone
  • shutdown -h now
4. After rebooting you should have a brand new admin account. When you login as the new admin you can simply delete the old one and you’re good to go again !

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Step 1: Start up from a Mac OS X Install CD.

MacOSX-DVD.pngThis hardest part of this technique may be laying your hands on a Mac OS X Install CD when you need one. Use a version that is close the the version of Mac OS X you have installed.

Hold the C key as the computer starts to boot from the CD.

When the installer starts, choose your language, and you'll proceed to the welcome dialog.

Step 2: Choose Reset Password from the Utilities menu.


Tip: In previous versions of Mac OS X (10.2 and 10.3), you can find the Resent Password option under the Installer menu instead.

Step 3: Select your Mac OS X hard disk volume.


Select the user name of your original administrator account.