xrdb(1) on Linux
The text dbb7229e0745, as Debian 7 (Wheezy) shipped it.
X server resource database utility
Flags it lists
-
-Dname -
-Idirectory -
-Uname -
-all -
-backup -
-cpp -
-display -
-edit -
-global -
-help -
-load -
-merge -
-n -
-nocpp -
-override -
-query -
-quiet -
-remove -
-retain -
-screen -
-screens -
-symbols