A great many functions in os10 under preferences etc. are handled under
the hood by utilities one can also access in terminal. Diskutility is the
one that would appear to be the one the mac uses for repair permmissions
and disk repair.
Here is the command in terminal to repair permissions:
sudo diskutil repairpermissions
The sudo is to allow access to some functions and will prompt for one's
password to proceed.
Do a:
man diskutility > textfile
This will capture the man help page for this utility to a textfile of your
choice, it is large as these things go. Look for this option:
repairVolume
That would appear to do the 2nd of what you want. I have only used the
repair permissions so read the man page for the 2nd option. Also a google
for:
os10 diskutility repairVolume
Will get more often then not a discussion of the experience of others
using the diskutility and the given option.
HTH. XB
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