A systems administrator downloads an application's source files, compiles the application, and installs it per the application's installation instructions. When trying to run the application, the…

Creating a symbolic link in /usr/local/bin, which is included in the default PATH, allows the shell to find the command by name without modifying PATH itself. This is standard practice for making non-standard-location binaries accessible system-wide.

Appending 'export PATH=$PATH:/opt/occmd/bin' to ~/.bashrc adds the binary's directory to the user's PATH environment variable on each login, enabling the shell to locate and execute the command by name.

Moving the application to the home directory and creating a relative symlink does not place the binary in a PATH-accessible location and would also break the relative symlink context.

This command uses invalid shell syntax with unescaped braces and misuses 'which', and writing a wrapper to /usr/bin would not resolve the underlying PATH issue correctly.

/etc/bin/ is not a valid or standard directory on Linux systems, so moving the binary there would not make it accessible via PATH.

chmod +x makes the file executable and restorecon restores SELinux file contexts, but neither action places the binary in a PATH-accessible location or resolves the 'command not found' error.