musage
A command line memory usage information tool.

Why?
A better interface for free.
BTW
You might also like dusage.
Both can be i.e. automatically executed upon login via ssh to a remote machine by invoking them in the remote's .bashrc or .zshrc.
Features
- bargraph with RAM and cache memory usage.
- background: cache, foreground: RAM.
Installation
Building from source
Using precompiled binaries
Precompiled binaries are available for multiple architectures in Releases.