[TUHS] (no subject)
Dennis Ritchie
dmr at plan9.bell-labs.com
Fri May 23 14:10:30 AEST 2003
> The V7 ls(1) man page says that the -s option, which prints total
>blocks, includes any indirect blocks.
>However, the V7 struct stat didn't have the st_blocks member in the
> struct stat, and the code in ls.c uses
> long
> nblock(size)
> long size;
> {
> return((size+511)>>9);
> }
>So, is this just a case of the man page being mistaken?
Yes, it looks like a manual bug. Retrieving
the true number of indirect blocks isn't possible
from the 7th edition stat. I'm not sure when (or by
whom) the st_blocks member was added.
> While I'm at it, the V7 ls -a option only adds . and .. to the
> list; apparently all other dot files were printed by default.
> When did ls change such that -a applied to all dot files?
UCB or USL did this (I'm sure which first).
Both tended to use more . files.
Dennis
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