ps aux|grep vnc
pi        1075  0.1  0.8  12072  7712 ?        S    21:33   0:00 Xtightvnc :1 -desktop X -auth /home/pi/.Xauthority -geometry 1280x800 -depth 16 -pixelformat rgb565 -rfbwait 120000 -rfbauth /home/pi/.vnc/passwd -rfbport 5901 -fp /usr/share/fonts/X11/misc/,/usr/share/fonts/X11/Type1/,/usr/share/fonts/X11/75dpi/,/usr/share/fonts/X11/100dpi/ -co /etc/X11/rgb
pi        1079  0.0  0.0   1896   416 ?        S    21:33   0:00 /bin/sh /home/pi/.vnc/xstartup
pi        1818  0.0  0.2   4264  1964 pts/0    R+   21:38   0:00 grep --color=auto vnc