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/sbin/ldconfig [ -nNvXV ] [ -f conf ] [ -C cache ] [ -r root ] direc-
/sbin/ldconfig -l [ -v ] library ...
ldconfig creates the necessary links and cache to the most recent
shared libraries found in the directories specified on the command
line, in the file /etc/ld.so.conf, and in the trusted directories (/lib
and /usr/lib). The cache is used by the run-time linker, ld.so or ld-
linux.so. ldconfig checks the header and filenames of the libraries it
encounters when determining which versions should have their links
ldconfig will attempt to deduce the type of ELF libs (i.e., libc5 or
libc6/glibc) based on what C libs, if any, the library was linked
Some existing libs do not contain enough information to allow the
deduction of their type. Therefore, the /etc/ld.so.conf file format
allows the specification of an expected type. This is used only for
those ELF libs which we can not work out. The format is
"dirname=TYPE", where TYPE can be libc4, libc5, or libc6. (This syntax
also works on the command line.) Spaces are not allowed. Also see the
-p option. ldconfig should normally be run by the superuser as it may
require write permission on some root owned directories and files.
-v Verbose mode. Print current version number, the name of each
directory as it is scanned, and any links that are created.
Overrides quiet mode.
-n Only process directories specified on the command line. Don't
process the trusted directories (/lib and /usr/lib) nor those
specified in /etc/ld.so.conf. Implies -N.
-N Don't rebuild the cache. Unless -X is also specified, links are
-X Don't update links. Unless -N is also specified, the cache is
Use conf instead of /etc/ld.so.conf.
Use cache instead of /etc/ld.so.cache.
Change to and use root as the root directory.
GNU 2012-05-10 LDCONFIG(8)