$ which free /usr/bin/free $ whereis free free: /usr/bin/free /usr/share/man/man1/free.1.gz
This represents the 64-bit extension of the x86 instruction set architecture. It enables systems to address more than 4 GB of RAM. x8664bilinuxadventerprisems1542sbin free
This is an internal version control, build milestone, or patch identifier used by developers to track the exact release cycle or service pack of the software. $ which free /usr/bin/free $ whereis free free:
For an "Advanced Enterprise" release (indicated by the adventerprise tag), the binaries compiled for the x86_64 architecture inside /sbin are optimized for high-availability servers, multi-socket Intel/AMD platforms, and virtualization hypervisors. Monitoring Memory with the free Command multi-socket Intel/AMD platforms