Creates a full path name.
makepath <strvar> <dir> <name>
Creates the full path name from the directory name <dir> and file name <name>. The full path name is stored in the string variable <strvar>.
If necessary, '\' is inserted between <dir> and <name>.
makepath path 'c:\teraterm' 'test.txt' ; path = "c:\teraterm\test.txt"