Global macros

[Adam Ng]

I was looking at some guide and saw them using the commands cd, global datadir, global dirresults. I understand that cd defines the working directory (place where we want the results/output to be stored upon execution of commands) and global datadir is just a global macro that we can use to store a file path. However, I still cannot differentiate difference between cd and global dirresults. Can anyone explain? Thanks!

[William Lisowski]

The commands

global datadir
global dirresults

delete any prior definitions of the global macros datadir and dirresults.

. global datadir whatever

. display "$datadir"
whatever

. global datadir

. display "$datadir"


.

In particular, cd and global dirresults seem unlikely to have anything to do with each other, unless the guide you saw included some sort of command that created the global macro dirresults.