In message <C1529E45.49CDE%email@hidden>, Jeffrey Ellis writes:
>
>on 10/11/06 6:32 AM, email@hidden at
>email@hidden wrote:
>
>>> Sorry for being dense. Not sure I understand exactly what this does. Can
>>> someone explain this...?
>>>
>>> -f For each existing destination pathname, remove it and create a new
>>> file, without prompting for confirmation regardless of its
>>> permissions.
>>>
>>> Doesn't cp do this by default unless you use -i or -n ...which this
>>> overrides?
>>
>> No.
>>
>> $ cd /tmp
>> $ cp /dev/null t
>> $ chmod 600 t
>> $ cp /dev/null t
>> $ chmod 0 t
>> $ cp /dev/null t
>> cp: t: Permission denied
>> $ cp -f /dev/null t
>> $
>>
>> -s
>
>Hi, Peter--
>
>Sorry, but could you please explain this output step by step? I'm not sure I
>really get what's happening...
1. Create file called t.
2. Give self read/write privs on t.
3. Copy over t. It works, no problems.
4. Remove read/write privs on t.
5. Copy over t. Fails, permission denied.
6. Copy over, with -f, t. Succeeds.
In short, that's what the -f flag does; it overrides permissions if it is
able to do so.
-s
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