Shared Libraries
Shared libraries are units of code, such as glibc, which are used by a number of applications and services. Applications utilizing a shared library typically load the shared code when the application is initialized, so any applications using the updated library must be halted and relaunched.
To determine which running applications link against a particular library, use the lsof command as in the following example:
Example
COMMAND PID USER FD TYPE DEVICE SIZE NODE NAME
dbus-laun 3337 jyothis mem REG 8,2 79612 1882725 /lib/libnsl-2.9.so
dbus-daem 3338 jyothis mem REG 8,2 79612 1882725 /lib/libnsl-2.9.so
xscreensa 3343 jyothis mem REG 8,2 79612 1882725 /lib/libnsl-2.9.so
xfce4-ses 3347 jyothis mem REG 8,2 79612 1882725 /lib/libnsl-2.9.so
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