When using coor axis command within coorman.doc,
The AXIS command sets the variables XAXIs, YAXIs, ZAXIs, RAXIs, XCEN, YCEN, and ZCEN, which may be accessed with the "?" symbol.
Accessing variables or commands in Charmm requires first four letters. If more than four letters are written, CHARMm would normally ignore letters after forth.
But for above variables set by coor axis, if more than forth letters are written in command line, CHARMm does not access the set value of variable.
RAXIs can be accessed through ?RAXI but not with ?RAXIs
This does not cause any problem as all the variables can still be accessed through proper way of writing firth four letters.
But many times writing CHARMm script, user tend to write full word just to quickly understand the meaning of the command.
In case of accessing variables set by coor axis, it does not work and user have to stick to four letter format.
This may not be a bug in itself. But if there is a quick and effortless fix to it, I would like to know.