These Unix commands “should” work on both Mac and Windows, more or less
pwd
print the working directory (which folder am I in?)
ls
list the files and folders in this folder
ls -l
list the files and folders, long-form (with details)
cd thatFolderThere
go ‘into’ thatFolderThere
cd ..
go ‘up’ one level to the parent folder
cd thatFolder/subFolder
on a Mac, go two levels down into a subfolder
cd thatFolder\subFolder
on Windows, go two levels down into a subfolder
more thatFileThere
show file contents one screenful at a time