xlsatoms lists the interned atoms.
By default, all atoms starting from 1 (the lowest atom value
defined by the protocol) are listed until unknown atom is found.
If 20 licit range is given, xlsatoms will try all
atoms in the range, regardless of whether or not any are undefined.
This option specifies the X server to which to connect.
This option specifies a printf-style string used
to list each atom value,name pair,
printed in that order (value is an unsigned long
and name is a char *).
xlsatoms will supply a newline at the end of each line.
The default is ``%ld\t%s.''
This option specifies the range of atom values to check.
If low is not given, a value of 1 assumed.
If high is not given, xlsatoms will
stop at the first undefined atom at or above low.
This option specifies the name of an atom to list.
If the atom does not exist,
a message will be printed on the standard error.