(In C/C++/Linux)
Is there a way to concatenate file A and file B (or actually append one A’s content to that of B) only by altering the file system without the overhead of data copying? File A then can be discarded.
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(In C/C++/Linux)
Is there a way to concatenate file A and file B (or actually append one A’s content to that of B) only by altering the file system without the overhead of data copying? File A then can be discarded.
Thanks
If the files were block-structured, and if the OS supported block-structured files (as some do) then (in principle) yes. But as you are asking about Linux, I assume you are talking about a byte-stream oriented file system, where a disk block may not be completely used. In this case, some copying is inevitable and in practice you have to copy the whole file.