Resetting, compiling, saving etc

IDL> .f

resets everything (well) almost everything - we'll see exceptions later.

.compile blah.pro

Compiles blah.pro (surprise!) Actually it really just checks the syntax plus a bit more (see later).

blah

should then run blah.pro

stop

in a procedure stops it. You can then print/change variables, do plots etc. Very useful for debugging. Try putting a ``stop'' in dubya.pro . Then type,

IDL> help,x

save,/all,filename='~jmarsham/save_idl.dat'

saves all variables (you can select a subset) into  jmarsham/save_idl.dat

restore,'~jmarsham/save_idl.dat'

Will then restore those variables in an IDL session.