"acet-sys" - system functions
acet-sys-beep
acet-sys-command
acet-sys-control-down
acet-sys-foreground
acet-sys-keystate
acet-sys-lasterr
acet-sys-lmouse-down
acet-sys-mmouse-down
acet-sys-rmouse-down
acet-sys-procid
acet-sys-shift-down
acet-sys-sleep
acet-sys-spawn
acet-sys-term
acet-sys-wait