[Casper] Flushing User Caches

Miles Leacy miles.leacy at themacadmin.com
Wed Jan 21 14:11:23 PST 2009


When you run a script via a Casper policy, $3 = the user's shortname.  This
is why I structure my commands to target /Users/$3/
This may be a matter of preference, but I would skip the $file variable and
the for loop in this case.  We're operating on known values.  To me, at
least, it seems unnecessary to declare $file and then set up a for/if
structure when we can just operate on each item and save lines.

The script below accomplishes the goal with just a few lines and is set up
to be run as part of a Casper policy triggered by login.

## Start script
#!/bin/bash

m -Rf /Users/$3/Library/Cookies/*
m -Rf /Users/$3/Library/Safari/*
rm -Rf /Users/$3/Library/Caches/Metadata/Safari/*
rm -f /Users/$3/Library/Preferences/com.apple.Safari.plist
rm -f /Users/$3/Library/Preferences/com.apple.Safari.RSS.plist

## End script

I save "for" loops for situations where you need to discover the item to act
upon, i.e.
for i in $( dscl . -read /Groups/admin| grep GroupMembership:| awk '{for (j=3;
j<=NF; j++) printf " %s", $j; printf "\n" }' )
to get a list of all members of the admin group, other than root.

----------
Miles A. Leacy IV

 Certified System Administrator 10.4
 Certified Technical Coordinator 10.5
 Certified Trainer
Certified Casper Administrator
----------
voice: 1-347-277-7321
miles.leacy at themacadmin.com
www.themacadmin.com




On Wed, Jan 21, 2009 at 4:53 PM, Thomas Larkin <tlarki at kckps.org> wrote:

> Forgot to mention, this is written as a log in hook, so the it will pull
> the current user's home directory.  If you run it otherwise it won't
> work as it will look for root's home since it will be running most
> likely as root.
>
>
> ___________________________
> Thomas Larkin
> TIS Department
> KCKPS USD500
> tlarki at kckps.org
> blackberry:  913-449-7589
> office:  913-627-0351
>
>
>
>
>
> >>> Miles Leacy <miles.leacy at themacadmin.com> 01/21/09 3:30 PM >>>
> I see two problems with your script...
>
> 1. I don't believe "~" will work in your script since it's run by root.
>  I
> use the Casper variables to indicate "the home folder of the account
> logged
> in (or being logged in).  See my commands below.
> 2. If your clients are Leopard clients, you won't find anything at
> ~/Library/Caches/Safari/.  See below for the locations to be concerned
> with.
>
> If you want to emulate the "Reset Safari" menu item put this in your
> script
> instead:
>
> m -Rf /Users/$3/Library/Cookies/*
> m -Rf /Users/$3/Library/Safari/*
> rm -Rf /Users/$3/Library/Caches/Metadata/Safari/*
> rm -f /Users/$3/Library/Preferences/com.apple.Safari.plist
> rm -f /Users/$3/Library/Preferences/com.apple.Safari.RSS.plist
>
> You will, of course, need to reset any preferences you did want in
> there
> such as a default home page.  You can do this with "defaults write" or
> "PlistBuddy" at the end of your script.
>
> ----------
> Miles A. Leacy IV
>
>  Certified System Administrator 10.4
>  Certified Technical Coordinator 10.5
>  Certified Trainer
> Certified Casper Administrator
> ----------
> voice: 1-347-277-7321
> miles.leacy at themacadmin.com
> www.themacadmin.com
>
>
>
>
> On Wed, Jan 21, 2009 at 3:58 PM, Gene Anderson <ganderson at phrd.ab.ca>
> wrote:
>
> > "Thomas Larkin" <tlarki at kckps.org> writes:
> > >What you can do is have a policy set for log in via JSS web front
> end and
> > have it execute the script.  Can you post your script?
> >
> > rm -Rf ~/Library/Caches/Safari/*
> >
> > > I assume removing the temp and cache files the application will
> create
> > new ones upon next launch, and they are stored in that user's home
> > directory.
> >
> > yes. I'm mostly interested in the Safari cache.
> >
> > >So you can wild card or loop it for user's that are located in
> /Users and
> > exclude shared if need be.
> >
> > Casper policy is set to execute on login, frequency ongoing, scope
> for all
> > desired machines, and the script is specified in the Scripts tab.
> >
> > Do I have to specify any of the extra paramter options?
> >
> >
> >
> > Gene Anderson
> > Systems Analyst, ACTC, MCP
> > Pembina Hills Regional Division No.7
> > Phone: (780) 674-8535 ext 6860
> > email: ganderson at phrd.ab.ca
> >
> > "Passwords are like bubble gum, strongest when fresh, should never
> be
> > used by groups and create a sticky mess when left laying around"
> >
> > -anon
> >
> >
> > _______________________________________________
> > Casper mailing list
> > Casper at list.jamfsoftware.com
> > http://list.jamfsoftware.com/mailman/listinfo/casper
> >
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://list.jamfsoftware.com/pipermail/casper/attachments/20090121/c155b06c/attachment.htm 


More information about the Casper mailing list