An actual but where did my Linux memory go command;
This program
(repositories) came in handy while
helping someone resolve an  problem. Want to
see memory usage and shared memory, perhaps
sorted by swap?
smem -s swap -kta
smem --sort swap --abbreviate --totals --autosize
    What about on other categories running a --sort?
  
swap     (amount of swap space consumed ignoring sharing)
command  (process command line)
maps     (total mappings count)
name     (process name)
pid      (process id #)
user     (process owner)
pss      (proportional set size including sharing)
rss      (resident set size ignoring sharing)
uss      (unique set size)
vss      (virtual set size; total virtual memory mapped)
    Bonus: A filesystem usage command to catch /tmp/ and tmpfs (temporary file storage) abusers;
  
df -h | grep tmpfs
df --human-readable | grep tmpfs