Startup script to clean out trash can Post: 302093473

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Operating Systems OS X (Apple) Startup script to clean out trash can Post 302093473 by [MA]Flying_Meat on Thursday 19th of October 2006 03:34:21 PM

10-19-2006

Registered User

A login or logout hook could do this pretty easily.
Check out bombich.com for information about login/out hooks.

Basically the login hook mechanism puts the username into $1.
In pseudo code, the code to add to the login hook would go:
If "$1" equals studentusername
then rm -r /Users/studentusername/.Trash/*
End If

The system runs login hooks with root privs, so there should not be any access problem for the directory.
Admin privs (sudo) are required to add or remove login/out hooks. The script should be rwx for root only and stored in a directory with, at best, only root access.

A login or logout hook is really just a preference setting that points to a script to run (if I recall correctly). Well, that and some code some where responsible for passing the username to the script. Smilie

It should be said that the root account does not have to be enabled at all to create and use this hook functionality.
It can be a pretty powerful tool, and as with all powerful tools, test, test, test, then implement. Smilie

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LEARN ABOUT OSX

login

LOGIN(3)						   BSD Library Functions Manual 						  LOGIN(3)

NAME

     login, logout, logwtmp -- login utility functions (DEPRECATED)

SYNOPSIS

     #include <util.h>

     void
     login(struct utmp *ut);

     int
     logout(const char *line);

     void
     logwtmp(const char *line, const char *name, const char *host);

DESCRIPTION

     The login(), logout(), and logwtmp() functions are DEPRECATED; use pututxline(3) instead.

     These functions operate on the database of current users in /var/run/utmpx and the system log file.  Superuser permission is required.

     The login() function updates the /var/run/utmpx files with user information contained in ut (after converting to a struct utmpx, as described
     in pututxline(3)).

     The logout() function removes the entry from /var/run/utmpx corresponding to the device line.

     The logwtmp() function adds an entry to the system log file.  Since login() will add the appropriate entry during a login, logwtmp() is usu-
     ally used for logouts.

RETURN VALUES

     logout() returns non-zero if it was able to find and delete an entry for line, and zero if there is no entry for line in /var/run/utmpx.
     However, there is no error indication due to lack of permissions.

FILES

     /dev/*
     /var/run/utmpx

SEE ALSO

     pututxline(3), utmp(5), utmpx(5)

BSD
								 December 14, 1995							       BSD