ldconfig (Ubuntu GLIBC 2.23-0ubuntu5) 2.23 Copyright (C) 2016 Free Software Foundation, Inc. This is free software; see the source for copying conditions. There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Written by Andreas Jaeger.

Usage: ldconfig.real [OPTION...] Configure Dynamic Linker Run Time Bindings. -c, --format=FORMAT Format to use: new, old or compat (default) -C CACHE Use CACHE as cache file -f CONF Use CONF as configuration file -i, --ignore-aux-cache Ignore auxiliary cache file -l Manually link individual libraries. -n Only process directories specified on the command line. Don't build cache. -N Don't build cache -p, --print-cache Print cache -r ROOT Change to and use ROOT as root directory -v, --verbose Generate verbose messages -X Don't update symbolic links -?, --help Give this help list --usage Give a short usage message -V, --version Print program version Mandatory or optional arguments to long options are also mandatory or optional for any corresponding short options. For bug reporting instructions, please see: <https://bugs.launchpad.net/ubuntu/+source/glibc/+bugs>.