$ ls /usr/bin/*-config /usr/bin/iu-config /usr/bin/libpng-config /usr/bin/libpng12-config /usr/bin/pcre-config /usr/bin/ssh-host-config /usr/bin/ssh-user-config
Sorry, these files are not all the same.
libpng-config
libpng12-config
pcre-config
are used by package configure scripts to figure out where libraries and header files have been installed. E.g. they provide information; they do not modify your system.
iu-config
ssh-host-config
ssh-user-config
are "system setup" scripts used to install or initialize daemons. These modify your system.
I wouldn't mind if these scripts were moved into /usr/sbin or something, but leave the libpng-config/pcre-config style scripts alone. They NEED to be in the path of normal users.
--Chuck
