[Bug-cpio] How to remove a file from a CPIO archive without extracting

[T.Senthil Nathan]

Hello all,

Could you please let me know how to remove a set of files from the source CPIO archive with out extracting it and writing in to a destination archive file.

I have explored cpio-filter (http://search.cpan.org/~pixel/Archive-Cpio-0.07/bin/cpio-filter), implemented in perl. Today it reads the complete CPIO file and removed the exclude content and write it in to the destination file.

We want a cpio filter to work on a FIFO (name pipes) in which you will receive streams of 64K chunk of data, and apply this filter (exclude the file) on this stream and write in to the file.

Do we have any filter which is already available, if not can you please throw some light on how to implement this. 

Thanks,

Senthil