Missing command fuser
opatchauto apply is failing with below errors:
Prerequisite check “CheckSystemCommandAvailable” failed.
The details are: Missing command :fuser
Install below package as a root user:
yum install psmisc
The package contains the following programs:
fuser - identifies what processes are using files.
killall - kills a process by its name, similar to a pkill found in some other Unices.
pstree - Shows currently running processes in a tree format.
peekfd - Peek at file descriptors of running processes.