[Info-vax] Hard links on VMS ODS5 disks

[gah4]

On Friday, July 14, 2023 at 3:14:23 PM UTC-7, Craig A. Berry wrote:
 
> bash has some builtins but other things as separate executables. It 
> sounds like busybox just has everything as a builtin.

As well as I know it, in the usual case all those are symlinks.
The normal sh built-ins will still be built-in, and the others will use
the link, and run another busybox.

That works well for systems that can keep one copy in memory,
but run it more than once using that copy.  And you can replace
the symlink with an actual program, or symlink to something else.

The standalone_shell configure option, not the default, has it check
for busybox applets that are not normally shell built-ins, before checking
the path.  Especially convenient if there are no other files to run.