stubs for testing
oops, I meant subprocess
started implementing rum_UM
select so we can see if output is available
handle input and output of um subprocess
use files + locking for i/o multiplexing
use files with locking for counters
implement input and output for clients
implement interact_UM
fix syntax errors and typos
check for invalid counter files
debugging info
bugfix: seek after truncate
renamed monitor file and made it executable
output collection still not working
enable live debugging