I cannot make Viber to start on system boot. In the Viber settings I've checked: Start Viber on system startup. This seems to have added entry in the start up applications with command: viber. However such command does not exist. Tried to locate the installation with command whereis, but...

yasen@yasen-TECRA-Z50-A:~$ whereis viber

viber: /usr/share/viber

yasen@yasen-TECRA-Z50-A:/usr/share/viber$ ll

total 52

drwxr-xr-x   2 root root  4096 Nov 13 23:03 ./

drwxr-xr-x 327 root root 12288 Dec  6 19:00 ../

-rw-r--r--   1 root root  3957 Oct 31  2013 128x128.png

-rw-r--r--   1 root root   547 Oct 31  2013 16x16.png

-rw-r--r--   1 root root   867 Oct 31  2013 24x24.png

-rw-r--r--   1 root root  8001 Oct 31  2013 256x256.png

-rw-r--r--   1 root root  1091 Oct 31  2013 32x32.png

-rw-r--r--   1 root root  1573 Oct 31  2013 48x48.png

-rw-r--r--   1 root root  2043 Oct 31  2013 64x64.png

-rw-r--r--   1 root root  2961 Oct 31  2013 96x96.png