Most guis can be opened from an icon on the desktop. For those that cannot, use these text commands for GUI startup:

Weather: weathergtk
Scope Monitor: scopemon
Shutters: shutgtk
Telescope GUIs: telescopegtk XX example: telescopegtk S1

Obsgtk: obsgtk S1

Dome GUIs: domegtk XX example: domegtk S1
Tiptilt: tiptiltgtk
ESP GUIs:
LDC1: espgtk LDC1
LDC2: espgtk LDC2
PERI1: espgtk PERI1
PERI2: espgtk PERI2
OPLE: opletab u1 (For primary OPLE)
new PoPs with PERIs: popperigtk
POPS: popgtk
Socket Manager: sockman