spf-path programspf-path variable subpath skips program [arg...]
spf-path is useful for setting environment variables such as
$MANPATH, which should contain one entry for each package
directory. It looks under $SP_ROOT/package and
/package, and for every package that contains
subpath (e.g., "man" in the case of
$MANPATH), that path is added to the specified environment
variable. The "skips" argument is a space-separated
list of paths that should not be added to the environment variable even if
they exist. If any of the paths to be skipped contain shell metacharacters,
they should have an extra level of quoting applied, since this list will be
split using the shell's eval function. Finally,
spf-path runs the specified program with the new environment
setting.