manage shared library

list shared library dependence

ldd /bin/ls

this will list all the shared library that ls command use

use $LD_LIBRARY_PATH enviroment variable to change the shared library for test usage

export LD_LIBRARY_PATH=/testlibpath/

my defined the LD_LIBRARY_PATH env variable, it will search the sharedlib from this directory first. this is useful for test.

list kernel modules

lsmod this will list all loaded kernel modules

modprobe -r module remove the kernel module

modprobe module load the kernel module

never load the kernel modules

1. go to /etc/modprobe.d
2. modify the blacklist.conf
3. add the module to blacklist