I've used this type of routine many times, in view of the original post made by yogeshkumkar and given that I pointed out that he should print out the list of the find command I'd just like to understand how my code was "scary".
I'm quite happy to admit that I'm as likely to screw up as the next guy, but in this case I can't really see what is wrong with the advice that I gave. As I'm always keen to learn, I'd appreciate your feedback.
I don't mean to be critical, I'm just interested to know - I wouldn't deliberately give someone poor advice. I really didn't think that my post was too far off the mark, I use "find" this way frequently - I'm quite happy to admit my shortfalls but in this case I thought the advice was OK. Based on the original post I didn't think this was poor advice, I was just trying to solve a problem for someone.
Perhaps I should have said that the code should be "rm -i" and you can check each file prior to deletion.
Regards
Dave
Last edited by gull04; 03-11-2012 at 08:24 PM..
Reason: Typo
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LEARN ABOUT OPENSOLARIS
posix_madvise
posix_madvise(3C) Standard C Library Functions posix_madvise(3C)NAME
posix_madvise - memory advisory information
SYNOPSIS
#include <sys/mman.h>
int posix_madvise(void *addr, size_t len, int advice);
DESCRIPTION
The posix_madvise() function advises the system on the expected behavior of the application with respect to the data in the memory starting
at address addr, and continuing for len bytes. The system may use this information to optimize handling of the specified data. The
posix_madvise() function has no effect on the semantics of access to memory in the specified range, although it may affect the performance
of access.
The advice to be applied to the memory range is specified by the advice parameter and may be one of the following values:
POSIX_MADV_NORMAL Specifies that the application has no advice to give on its behavior with respect to the specified range. It is
the default characteristic if no advice is given for a range of memory.
POSIX_MADV_SEQUENTIAL Specifies that the application expects to access the specified range sequentially from lower addresses to higher
addresses.
POSIX_MADV_RANDOM Specifies that the application expects to access the specified range in a random order.
POSIX_MADV_WILLNEED Specifies that the application expects to access the specified range in the near future.
POSIX_MADV_DONTNEED Specifies that the application expects that it will not access the specified range in the near future.
These values are defined in <sys/mman.h>
RETURN VALUES
Upon successful completion, posix_madvise() returns zero. Otherwise, an error number is returned to indicate the error.
ERRORS
The posix_madvise() function will fail if:
EINVAL The value of advice is invalid.
ENOMEM Addresses in the range starting at addr and continuing for len bytes are partly or completely outside the range allowed for the
address space of the calling process.
The posix_madvise() function may fail if:
EINVAL The value of len is zero.
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Committed |
+-----------------------------+-----------------------------+
|MT-Level |MT-Safe |
+-----------------------------+-----------------------------+
|Standard |See standards(5). |
+-----------------------------+-----------------------------+
SEE ALSO mmap(2), madvise(3C), posix_madvise(3C), attributes(5), standards(5)SunOS 5.11 14 Jul 2008 posix_madvise(3C)