In a message written on Tue, Jul 29, 2003 at 05:27:14PM +0200, Bogdan TARU wrote: > I have tried to create some files of myself, with 'spaces' in them > (holes?), but they don't act like this. So could you please explain what > 'sparse' means, and the 'trick' to create them?
% cat sparse.c #include <sys/types.h> #include <sys/uio.h> #include <fcntl.h> #include <unistd.h> int main(void) { int fd; fd = open("sparse-file", O_RDWR|O_CREAT); lseek(fd, 1024*1024*1024, SEEK_SET); write(fd, "0123456789", 10); close(fd); } % cc -o sparse sparse.c % ./sparse % ls -lag sparse-file -r-xr----- 1 bicknell bicknell 1073741834 Jul 29 11:52 sparse-file* % du -k sparse-file 48 sparse-file -- Leo Bicknell - [EMAIL PROTECTED] - CCIE 3440 PGP keys at http://www.ufp.org/~bicknell/ Read TMBG List - [EMAIL PROTECTED], www.tmbg.org
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