mem

MEM

Display memory usage.

Syntax MEM MEM /C MEM /D MEM /P

Key

/P List programs in memory with the memory address and size of each /D List Programs(as /P) and also Devices /C List programs in conventional memory and list programs in upper memory

MEM will only display details about the current CMD shell environment, programs running in a separate shell (or WIN32 programs) will not be listed - so it won't tell you anything about total memory usage.

"The palest ink is better than the sharpest memory" - Chinese proverb

Related:

CLEARMEM (Resource Kit) - Clear Memory Leaks

WINMSD - Windows NT Diagnostics (including Physical Memory)

GUI Task Manager - for all program details including Win32 applications.

TLIST - Task List

powershell: gwmi Win32_PhysicalMemory / gwmi Win32_ComputerSystem

Q184419 - DisablePagingExecutive (use when >500M RAM is available)

Q126962 - How to increase desktop heap memory for non-interactive processes

Memory Management.doc - explains allocation of memory address space (Microsoft)

3GB Startup Switch (this is very rarely needed)

Equivalent bash command (Linux): free -t - Display a summary of current memory usage and availability.