Hello, I have a question whether sparse files are supported in Cygwin. From the source code, it looks like they are, but from the series of the following commands, I can't confirm:
$ dd bs=1 seek=1G if=/dev/null of=sparse 0+0 records in 0+0 records out 0 bytes copied, 0.00392699 s, 0.0 kB/s $ ls -l sparse -rw-r--r-- 1 lavr Domain Users 1073741824 Jul 26 12:51 sparse $ du --apparent-size sparse 1048576 sparse $ du sparse 1048576 sparse Same result if I create "sparse" with "touch sparse ; truncate -s 1G sparse" Compare Linux output: $ touch sparse ; truncate -s 1G sparse $ ls -l sparse -rw-r--r-- 1 lavr cppcore 1073741824 Jul 26 12:54 sparse $ du sparse 0 sparse $ du --apparent-size sparse 1048576 sparse And for those who say not all UN*X is Linux, the output from FreeBSD: > dd bs=1 seek=1G if=/dev/null of=sparse 0+0 records in 0+0 records out 0 bytes transferred in 0.000011 secs (0 bytes/sec) > ls -l sparse -rw-r--r-- 1 coremake cppcore 1073741824 Jul 26 12:57 sparse > du sparse 1 sparse > du -A sparse 1048576 sparse Thank you, Anton Lavrentiev Contractor NIH/NLM/NCBI -- Problem reports: http://cygwin.com/problems.html FAQ: http://cygwin.com/faq/ Documentation: http://cygwin.com/docs.html Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
