newbie's question on file deletion and restoration.

[Zhengguo Xu]

hi,

i have a question concerning file deletion and restoration and hope i can
get some help here. thanks a lot.

i deleted some files (in some folders) and when i tried to empty the
wastebasket there's some error message saying i don't have permission to do
that. when i check the permission setting, they are readable by owner and
nothing else.

so how can i reset the setting so i can empty the basket? i couldn't restore
the files like what i would have done in windows. and i cannot cut these
files and paste them somewhere to change setting (for the same permission
issue). i was thinking on sudo chown or chmod but i don't know what is the
path of these file. they are not in the 'lost + found' folder. (by the way,
what is the purpose of this so called lost + found folder?)

any suggestion?

mank thanks.
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