It has the following syntax:
ldconfig [options] [libs]
Running ldconfig with no arguments simply updates the cache file, /etc/ld.so.cache.
options control ldconfig??™s behavior. The -v option tells ldconfig to be verbose as it updates
the cache. The -p option says to print without updating the current list of shared libraries about
which ld.so knows. To see what ldconfig is doing when updating the cache, the -v option
will print out a display of directories and symlinks ldconfig has found.
Environment Variables and Configuration Files
The dynamic linker/loader ld.so uses a number of environment variables to customize and control
its behavior. These variables include:
$LD_LIBRARY_PATH: This variable contains a colon-separated list of directories in which
to search for shared libraries at runtime. It is similar to the $PATH environment variable.
$LD_PRELOAD: This variable is a whitespace-separated list of additional, user-specified
shared libraries to load before all other libraries. It is used selectively to override functions
in other shared libraries.
ld.so also uses two configuration files whose purposes parallel those environment variables:
/etc/ld.so.conf: Contains a list of directories that the linker/loader should search for
shared libraries in addition to the standard directories, /usr/lib and /lib, as well as
/lib64 on 64-bit architecture systems.
Pages:
1409
1410
1411
1412
1413
1414
1415
1416
1417
1418
1419
1420
1421
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433